chore(release): publish [skip ci]

- @ohif/extension-vtk@0.52.2 - @ohif/core@1.2.0 - @ohif/viewer@1.4.5
perf: 🎸 Update vtk viewport for faster image reconstruction (#1016 )
2019-10-09 11:27:27 +00:00 · 2019-10-09 13:13:13 +02:00 · 2019-10-07 16:31:47 -04:00 · 2019-10-06 21:07:44 -04:00 · 2019-10-07 01:07:06 +00:00 · 2019-10-06 20:57:49 -04:00
56 changed files with 2049 additions and 555 deletions
@@ -175,7 +175,7 @@ jobs:
      - run:
          name: 'Build Demo Site'
          command: yarn run build:demo
-          no_output_timeout: 30m
+          no_output_timeout: 45m
      - run:
          name: 'Upload SourceMaps, Send Deploy Notification'
          command: |
@@ -8,11 +8,13 @@ coverage:
  status:
    project:
      default:
-        threshold: 0.10%
+        threshold: 0.5%
      core:
        flags: core
+        threshold: 0.5%
      viewer:
        flags: viewer
+        threshold: 0.5%
    patch: off
 flags:
  core:
@@ -132,7 +132,7 @@ deployment recipe.
 ### Requirements

 - [Yarn 1.17.3+](https://yarnpkg.com/en/docs/install)
- [Node 8+](https://nodejs.org/en/)
+- [Node 10+](https://nodejs.org/en/)
 - Yarn Workspaces should be enabled on your machine:
  - `yarn config set workspaces-experimental true`

@@ -3,6 +3,82 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

+## [0.52.2](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@0.52.1...@ohif/extension-vtk@0.52.2) (2019-10-09)
+
+
+### Performance Improvements
+
+* 🎸 Update vtk viewport for faster image reconstruction ([#1016](https://github.com/OHIF/Viewers/issues/1016)) ([8513ad9](https://github.com/OHIF/Viewers/commit/8513ad9))
+
+
+
+
+
+## [0.52.1](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@0.52.0...@ohif/extension-vtk@0.52.1) (2019-10-04)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+# [0.52.0](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@0.51.3...@ohif/extension-vtk@0.52.0) (2019-10-03)
+
+
+### Features
+
+* 🎸 Synced Window Leveling ([559b637](https://github.com/OHIF/Viewers/commit/559b637)), closes [#558](https://github.com/OHIF/Viewers/issues/558)
+
+
+
+
+
+## [0.51.3](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@0.51.2...@ohif/extension-vtk@0.51.3) (2019-10-03)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [0.51.2](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@0.51.1...@ohif/extension-vtk@0.51.2) (2019-10-02)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [0.51.1](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@0.51.0...@ohif/extension-vtk@0.51.1) (2019-10-01)
+
+
+### Bug Fixes
+
+* **rotate:** Use new MPR rotate in react-vtkjs-viewport 0.1.2 ([#964](https://github.com/OHIF/Viewers/issues/964)) ([8503cbc](https://github.com/OHIF/Viewers/commit/8503cbc))
+
+
+
+
+
+# [0.51.0](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@0.50.23...@ohif/extension-vtk@0.51.0) (2019-10-01)
+
+
+### Features
+
+* 🎸 MPR UI improvements. Added MinIP, AvgIP, slab thickness slider and mode toggle ([#947](https://github.com/OHIF/Viewers/issues/947)) ([c79c0c3](https://github.com/OHIF/Viewers/commit/c79c0c3))
+
+
+
+
+
+## [0.50.23](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@0.50.22...@ohif/extension-vtk@0.50.23) (2019-10-01)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
 ## [0.50.22](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@0.50.21...@ohif/extension-vtk@0.50.22) (2019-09-27)

 **Note:** Version bump only for package @ohif/extension-vtk
@@ -1,6 +1,6 @@
 {
  "name": "@ohif/extension-vtk",
-  "version": "0.50.22",
+  "version": "0.52.2",
  "description": "OHIF extension for VTK.js",
  "author": "OHIF",
  "license": "MIT",
@@ -48,11 +48,11 @@
  },
  "dependencies": {
    "@babel/runtime": "^7.5.5",
-    "react-vtkjs-viewport": "0.1.0"
+    "react-vtkjs-viewport": "0.1.4"
  },
  "devDependencies": {
-    "@ohif/core": "^1.0.1",
-    "@ohif/ui": "^0.51.2",
+    "@ohif/core": "^1.2.0",
+    "@ohif/ui": "^0.53.1",
    "cornerstone-tools": "^4.0.9",
    "cornerstone-wado-image-loader": "^3.0.0",
    "dcmjs": "^0.6.1",
@@ -1,16 +1,17 @@
-import React, { Component } from "react";
-import { getImageData, loadImageData } from "react-vtkjs-viewport";
+import React, { Component } from 'react';
+import { getImageData, loadImageData } from 'react-vtkjs-viewport';

-import ConnectedVTKViewport from "./ConnectedVTKViewport";
-import LoadingIndicator from "./LoadingIndicator.js";
-import OHIF from "@ohif/core";
-import PropTypes from "prop-types";
-import cornerstone from "cornerstone-core";
-import handleSegmentationStorage from "./handleSegmentationStorage.js";
-import vtkDataArray from "vtk.js/Sources/Common/Core/DataArray";
-import vtkImageData from "vtk.js/Sources/Common/DataModel/ImageData";
-import vtkVolume from "vtk.js/Sources/Rendering/Core/Volume";
-import vtkVolumeMapper from "vtk.js/Sources/Rendering/Core/VolumeMapper";
+import ConnectedVTKViewport from './ConnectedVTKViewport';
+import LoadingIndicator from './LoadingIndicator.js';
+import OHIF from '@ohif/core';
+import PropTypes from 'prop-types';
+import cornerstone from 'cornerstone-core';
+import handleSegmentationStorage from './handleSegmentationStorage.js';
+import vtkDataArray from 'vtk.js/Sources/Common/Core/DataArray';
+import vtkImageData from 'vtk.js/Sources/Common/DataModel/ImageData';
+import vtkVolume from 'vtk.js/Sources/Rendering/Core/Volume';
+import vtkVolumeMapper from 'vtk.js/Sources/Rendering/Core/VolumeMapper';
+import vtkViewportSubscriptionManager from './utils/vtkViewportSubscriptionManager.js';

 const { StackManager } = OHIF.utils;

@@ -24,7 +25,7 @@ cornerstone.metaData.addProvider(
 StackManager.setMetadataProvider(metadataProvider);

 const SOP_CLASSES = {
-  SEGMENTATION_STORAGE: "1.2.840.10008.5.1.4.1.1.66.4"
+  SEGMENTATION_STORAGE: '1.2.840.10008.5.1.4.1.1.66.4',
 };

 const specialCaseHandlers = {};
@@ -42,7 +43,7 @@ const volumeCache = {};
 */
 function createLabelMapImageData(backgroundImageData) {
  const labelMapData = vtkImageData.newInstance(
-    backgroundImageData.get("spacing", "origin", "direction")
+    backgroundImageData.get('spacing', 'origin', 'direction')
  );
  labelMapData.setDimensions(backgroundImageData.getDimensions());
  labelMapData.computeTransforms();
@@ -50,7 +51,7 @@ function createLabelMapImageData(backgroundImageData) {
  const values = new Uint8Array(backgroundImageData.getNumberOfPoints());
  const dataArray = vtkDataArray.newInstance({
    numberOfComponents: 1, // labelmap with single component
-    values
+    values,
  });
  labelMapData.getPointData().setScalars(dataArray);

@@ -61,24 +62,24 @@ class OHIFVTKViewport extends Component {
  state = {
    volumes: null,
    paintFilterLabelMapImageData: null,
-    paintFilterBackgroundImageData: null
+    paintFilterBackgroundImageData: null,
  };

  static propTypes = {
    studies: PropTypes.object,
    displaySet: PropTypes.object,
    viewportIndex: PropTypes.number,
-    children: PropTypes.node
+    children: PropTypes.node,
  };

-  static id = "OHIFVTKViewport";
+  static id = 'OHIFVTKViewport';

  static init() {
-    console.log("OHIFVTKViewport init()");
+    console.log('OHIFVTKViewport init()');
  }

  static destroy() {
-    console.log("OHIFVTKViewport destroy()");
+    console.log('OHIFVTKViewport destroy()');
    StackManager.clearStacks();
  }

@@ -109,7 +110,7 @@ class OHIFVTKViewport extends Component {
    } else if (sopInstanceUid) {
      const index = stack.imageIds.findIndex(imageId => {
        const sopCommonModule = cornerstone.metaData.get(
-          "sopCommonModule",
+          'sopCommonModule',
          imageId
        );
        if (!sopCommonModule) {
@@ -151,7 +152,7 @@ class OHIFVTKViewport extends Component {

    switch (sopClassUid) {
      case SOP_CLASSES.SEGMENTATION_STORAGE:
-        throw new Error("Not yet implemented");
+        throw new Error('Not yet implemented');

        const data = handleSegmentationStorage(
          stack.imageIds,
@@ -164,7 +165,7 @@ class OHIFVTKViewport extends Component {
        return loadImageData(imageDataObject).then(() => {
          return {
            data: imageDataObject.vtkImageData,
-            labelmap: labelmapDataObject
+            labelmap: labelmapDataObject,
          };
        });
      default:
@@ -172,7 +173,7 @@ class OHIFVTKViewport extends Component {

        return loadImageData(imageDataObject).then(() => {
          return {
-            data: imageDataObject.vtkImageData
+            data: imageDataObject.vtkImageData,
          };
        });
    }
@@ -189,10 +190,16 @@ class OHIFVTKViewport extends Component {
    volumeActor.setMapper(volumeMapper);
    volumeMapper.setInputData(data);

-    const range = data.getPointData().getScalars().getRange();
+    const range = data
+      .getPointData()
+      .getScalars()
+      .getRange();

    // TODO: For PET we might want to just set this to 0-5 SUV
-    volumeActor.getProperty().getRGBTransferFunction(0).setRange(range[0], range[1]);
+    volumeActor
+      .getProperty()
+      .getRGBTransferFunction(0)
+      .setRange(range[0], range[1]);

    // TODO: Should look into implementing autoAdjustSampleDistance in vtk
    const sampleDistance =
@@ -200,7 +207,7 @@ class OHIFVTKViewport extends Component {
      Math.sqrt(
        data
          .getSpacing()
-          .map((v) => v * v)
+          .map(v => v * v)
          .reduce((a, b) => a + b, 0)
      );

@@ -218,12 +225,12 @@ class OHIFVTKViewport extends Component {
      displaySetInstanceUid,
      sopClassUids,
      sopInstanceUid,
-      frameIndex
+      frameIndex,
    } = displaySet;

    if (sopClassUids.length > 1) {
      console.warn(
-        "More than one SOPClassUid in the same series is not yet supported."
+        'More than one SOPClassUid in the same series is not yet supported.'
      );
    }

@@ -249,7 +256,7 @@ class OHIFVTKViewport extends Component {
    this.setState({
      volumes: [volumeActor],
      paintFilterBackgroundImageData: data,
-      paintFilterLabelMapImageData: labelmap
+      paintFilterLabelMapImageData: labelmap,
    });
  }

@@ -257,6 +264,11 @@ class OHIFVTKViewport extends Component {
    this.setStateFromProps();
  }

+  componentWillUnmount() {
+    console.log(this.props.viewportIndex);
+    vtkViewportSubscriptionManager.unsubscribe(this.props.viewportIndex);
+  }
+
  componentDidUpdate(prevProps) {
    const { studies, displaySet } = this.props.viewportData;
    const prevDisplaySet = prevProps.viewportData.displaySet;
@@ -279,12 +291,12 @@ class OHIFVTKViewport extends Component {
      childrenWithProps = this.props.children.map((child, index) => {
        return React.cloneElement(child, {
          viewportIndex: this.props.viewportIndex,
-          key: index
+          key: index,
        });
      });
    }

-    const style = { width: "100%", height: "100%", position: "relative" };
+    const style = { width: '100%', height: '100%', position: 'relative' };

    return (
      <>
@@ -2,12 +2,14 @@ import {
  vtkInteractorStyleMPRCrosshairs,
  vtkInteractorStyleMPRWindowLevel,
  vtkInteractorStyleMPRSlice,
+  vtkInteractorStyleMPRRotate,
  vtkSVGCrosshairsWidget,
  vtkSVGWidgetManager,
 } from 'react-vtkjs-viewport';

 import setMPRLayout from './utils/setMPRLayout.js';
 import setViewportToVTK from './utils/setViewportToVTK.js';
+import vtkViewportSubscriptionManager from './utils/vtkViewportSubscriptionManager.js';
 import vtkCoordinate from 'vtk.js/Sources/Rendering/Core/Coordinate';
 import vtkMath from 'vtk.js/Sources/Common/Core/Math';
 import vtkMatrixBuilder from 'vtk.js/Sources/Common/Core/MatrixBuilder';
@@ -18,6 +20,7 @@ const { BlendMode } = Constants;
 // TODO: Put this somewhere else
 let apis = {};
 let currentSlabThickness = 0.1;
+let defaultSlabThickness = 0.1;

 function getCrosshairCallbackForIndex(index) {
  return ({ worldPos }) => {
@@ -98,7 +101,7 @@ function _setView(api, sliceNormal, viewUp) {
  const camera = renderer.getActiveCamera();
  const istyle = renderWindow.getInteractor().getInteractorStyle();
  istyle.setSliceNormal(...sliceNormal);
-  camera.setViewUp(...viewUp);
+  istyle.setViewUp(...viewUp);

  renderWindow.render();
 }
@@ -109,14 +112,15 @@ function switchMPRInteractors(api, istyle) {
  const camera = renderer.getActiveCamera();
  const currentIStyle = renderWindow.getInteractor().getInteractorStyle();

-  let currentNormal;
-  if (currentIStyle.getSliceNormal && istyle.getSliceNormal) {
-    currentNormal = currentIStyle.getSliceNormal();
+  let currentViewport;
+  if (currentIStyle.getViewport && istyle.getViewport) {
+    currentViewport = currentIStyle.getViewport();
  }

  let currentSlabThickness;
  if (currentIStyle.getSlabThickness && istyle.getSlabThickness) {
    currentSlabThickness = currentIStyle.getSlabThickness();
+    defaultSlabThickness = currentSlabThickness;
  }

  renderWindow.getInteractor().setInteractorStyle(istyle);
@@ -124,11 +128,11 @@ function switchMPRInteractors(api, istyle) {
  // TODO: Not sure why this is required the second time this function is called
  istyle.setInteractor(renderWindow.getInteractor());

-  if (istyle.getVolumeMapper() !== api.volumes[0]) {
-    if (currentNormal) {
-      istyle.setSliceNormal(currentNormal);
-    }
+  if (currentViewport) {
+    istyle.setViewport(currentViewport);
+  }

+  if (istyle.getVolumeMapper() !== api.volumes[0]) {
    if (currentSlabThickness) {
      istyle.setSlabThickness(currentSlabThickness);
    }
@@ -161,7 +165,7 @@ const actions = {
  },
  enableRotateTool: () => {
    apis.forEach(api => {
-      const istyle = vtkInteractorStyleMPRSlice.newInstance();
+      const istyle = vtkInteractorStyleMPRRotate.newInstance();

      switchMPRInteractors(api, istyle);
    });
@@ -182,7 +186,7 @@ const actions = {
      switchMPRInteractors(api, istyle);
    });
  },
-  setSlabThickness: slabThickness => {
+  setSlabThickness: ({ slabThickness }) => {
    currentSlabThickness = slabThickness;

    apis.forEach(api => {
@@ -191,15 +195,6 @@ const actions = {

      if (istyle.setSlabThickness) {
        istyle.setSlabThickness(currentSlabThickness);
-
-        // TODO: Do this inside the interactors in a setSlabThickness function instead
-        const renderer = api.genericRenderWindow.getRenderer();
-        const camera = renderer.getActiveCamera();
-        const dist = camera.getDistance();
-        const near = dist - currentSlabThickness / 2;
-        const far = dist + currentSlabThickness / 2;
-
-        camera.setClippingRange(near, far);
      }

      renderWindow.render();
@@ -220,6 +215,32 @@ const actions = {
      renderWindow.render();
    });
  },
+  setBlendModeToComposite: () => {
+    apis.forEach(api => {
+      const renderWindow = api.genericRenderWindow.getRenderWindow();
+      const istyle = renderWindow.getInteractor().getInteractorStyle();
+
+      const mapper = api.volumes[0].getMapper();
+      if (mapper.setBlendModeToComposite) {
+        mapper.setBlendModeToComposite();
+      }
+
+      if (istyle.setSlabThickness) {
+        istyle.setSlabThickness(defaultSlabThickness);
+      }
+      renderWindow.render();
+    });
+  },
+  setBlendModeToMaximumIntensity: () => {
+    apis.forEach(api => {
+      const renderWindow = api.genericRenderWindow.getRenderWindow();
+      const mapper = api.volumes[0].getMapper();
+      if (mapper.setBlendModeToMaximumIntensity) {
+        mapper.setBlendModeToMaximumIntensity();
+      }
+      renderWindow.render();
+    });
+  },
  setBlendMode: ({ blendMode }) => {
    apis.forEach(api => {
      const renderWindow = api.genericRenderWindow.getRenderWindow();
@@ -243,16 +264,19 @@ const actions = {

    apis = apiByViewport;

-    /*const rgbTransferFunction = apiByViewport[0].volumes[0]
+    const rgbTransferFunction = apiByViewport[0].volumes[0]
      .getProperty()
      .getRGBTransferFunction(0);
-    rgbTransferFunction.onModified(() => {
+
+    const onModifiedSubscription = rgbTransferFunction.onModified(() => {
      apiByViewport.forEach(a => {
        const renderWindow = a.genericRenderWindow.getRenderWindow();

        renderWindow.render();
      });
-    });*/
+    });
+
+    vtkViewportSubscriptionManager.pushSubscription(0, onModifiedSubscription);

    apiByViewport.forEach((api, index) => {
      const renderWindow = api.genericRenderWindow.getRenderWindow();
@@ -284,18 +308,18 @@ const actions = {
        case 0:
          //Axial
          istyle.setSliceNormal(0, 0, 1);
-          camera.setViewUp(0, -1, 0);
+          istyle.setViewUp(0, -1, 0);

          break;
        case 1:
          // sagittal
          istyle.setSliceNormal(1, 0, 0);
-          camera.setViewUp(0, 0, 1);
+          istyle.setViewUp(0, 0, 1);
          break;
        case 2:
          // Coronal
          istyle.setSliceNormal(0, 1, 0);
-          camera.setViewUp(0, 0, 1);
+          istyle.setViewUp(0, 0, 1);
          break;
      }

@@ -338,12 +362,12 @@ const definitions = {
    options: {},
  },
  setBlendModeToComposite: {
-    commandFn: actions.setBlendMode,
+    commandFn: actions.setBlendModeToComposite,
    storeContexts: [],
    options: { blendMode: BlendMode.COMPOSITE_BLEND },
  },
  setBlendModeToMaximumIntensity: {
-    commandFn: actions.setBlendMode,
+    commandFn: actions.setBlendModeToMaximumIntensity,
    storeContexts: [],
    options: { blendMode: BlendMode.MAXIMUM_INTENSITY_BLEND },
  },
@@ -0,0 +1,207 @@
+import React, { useState, useEffect } from 'react';
+import PropTypes from 'prop-types';
+import classnames from 'classnames';
+import { Range, Checkbox, Select } from '@ohif/ui';
+
+import './slab-thickness-toolbar-button.styl';
+
+const SLIDER = {
+  MIN: 0.1,
+  MAX: 1000,
+  STEP: 0.1,
+};
+
+const ToolbarLabel = props => {
+  const { label } = props;
+  return <div className="toolbar-button-label">{label}</div>;
+};
+
+const ToolbarSlider = props => {
+  const { value, min, max, onChange } = props;
+  return (
+    <div className="toolbar-slider-container">
+      <label htmlFor="toolbar-slider">{value}mm</label>
+      <Range
+        value={value}
+        min={min}
+        max={max}
+        step={SLIDER.STEP}
+        onChange={onChange}
+        id="toolbar-slider"
+      />
+    </div>
+  );
+};
+
+const _getSelectOptions = button => {
+  return button.operationButtons.map(button => {
+    return {
+      key: button.label,
+      value: button.id,
+    };
+  });
+};
+
+const _getClassNames = (isActive, className) => {
+  return classnames('toolbar-button', 'slab-thickness', className, {
+    active: isActive,
+  });
+};
+
+const _applySlabThickness = (
+  value,
+  modeChecked,
+  toolbarClickCallback,
+  button
+) => {
+  if (!modeChecked || !toolbarClickCallback) {
+    return;
+  }
+
+  const { actionButton } = button;
+
+  const generateOperation = (operation, value) => {
+    // Combine slider value into slider operation
+    const generatedOperation = { ...operation };
+    generatedOperation.commandOptions = {
+      ...operation.commandOptions,
+      slabThickness: value,
+    };
+
+    return generatedOperation;
+  };
+
+  const operation = generateOperation(actionButton, value);
+  toolbarClickCallback(operation, event);
+};
+
+const _applyModeOperation = (
+  operation,
+  modeChecked,
+  toolbarClickCallback,
+  button
+) => {
+  // in case modeChecked has not being triggered by user yet
+  if (typeof modeChecked !== 'boolean') {
+    return;
+  }
+
+  const { deactivateButton } = button;
+
+  const _operation = modeChecked ? operation : deactivateButton;
+  if (toolbarClickCallback && _operation) {
+    toolbarClickCallback(_operation);
+  }
+};
+
+const _getInitialState = currentSelectedOption => {
+  return {
+    value: SLIDER.MIN,
+    sliderMin: SLIDER.MIN,
+    sliderMax: SLIDER.MAX,
+    modeChecked: undefined,
+    operation: currentSelectedOption,
+  };
+};
+
+const INITIAL_OPTION_INDEX = 0;
+const _getInitialtSelectedOption = (button = {}) => {
+  return (
+    button.operationButtons && button.operationButtons[INITIAL_OPTION_INDEX]
+  );
+};
+
+function SlabThicknessToolbarComponent({
+  parentContext,
+  toolbarClickCallback,
+  button,
+  activeButtons,
+  isActive,
+  className,
+}) {
+  const currentSelectedOption = _getInitialtSelectedOption(button);
+  const [state, setState] = useState(_getInitialState(currentSelectedOption));
+  const { label, operationButtons } = button;
+  const _className = _getClassNames(isActive, className);
+  const selectOptions = _getSelectOptions(button);
+  function onChangeSelect(selectedValue) {
+    // find select value
+    const operation = operationButtons.find(
+      button => button.id === selectedValue
+    );
+
+    if (operation === state.operation) {
+      return;
+    }
+
+    setState({ ...state, operation });
+  }
+
+  function onChangeCheckbox(checked) {
+    setState({ ...state, modeChecked: checked });
+  }
+
+  function onChangeSlider(event) {
+    const value = Number(event.target.value);
+
+    if (value !== state.value) {
+      setState({ ...state, value, modeChecked: true });
+    }
+  }
+
+  useEffect(() => {
+    _applyModeOperation(
+      state.operation,
+      state.modeChecked,
+      toolbarClickCallback,
+      button
+    );
+  }, [state.modeChecked, state.operation]);
+
+  useEffect(() => {
+    _applySlabThickness(
+      state.value,
+      state.modeChecked,
+      toolbarClickCallback,
+      button
+    );
+  }, [state.operation, state.modeChecked, state.value]);
+
+  return (
+    <div className={_className}>
+      <div className="container">
+        <ToolbarSlider
+          value={state.value}
+          min={state.sliderMin}
+          max={state.sliderMax}
+          onChange={onChangeSlider}
+        />
+        <ToolbarLabel key="toolbar-label" label={label} />
+      </div>
+      <div className="controller">
+        <Checkbox
+          label="mode"
+          checked={state.modeChecked}
+          onChange={onChangeCheckbox}
+        ></Checkbox>
+        <Select
+          key="toolbar-select"
+          options={selectOptions}
+          value={selectOptions[INITIAL_OPTION_INDEX].value}
+          onChange={onChangeSelect}
+        ></Select>
+      </div>
+    </div>
+  );
+}
+
+SlabThicknessToolbarComponent.propTypes = {
+  parentContext: PropTypes.object.isRequired,
+  toolbarClickCallback: PropTypes.func.isRequired,
+  button: PropTypes.object.isRequired,
+  activeButtons: PropTypes.array.isRequired,
+  isActive: PropTypes.bool,
+  className: PropTypes.string,
+};
+
+export default SlabThicknessToolbarComponent;
@@ -0,0 +1,55 @@
+.slab-thickness
+  display: flex;
+  flex-direction: row;
+  align-items: flex-end;
+  height: 60px;
+  margin-top: -12px;
+  &:hover
+    color: var(--default-color);
+  .container
+    padding-right: 10px;
+    height: inherit;
+    display: flex;
+    flex-direction: column;
+    justify-content: space-between;
+    .toolbar-slider-container
+      width: 80px;
+      margin: 0px 2px 2px 2px;
+      font-size: 12px;
+      &:hover
+        color: var(--hover-color);
+      input
+        height: 20px;
+        padding-top: 6px;
+        &::-moz-range-thumb
+          height: 16px;
+          margin-top: -7px;
+        &::-webkit-slider-thumb
+          height: 16px;
+          margin-top: -7px;
+  .controller
+    width: 62px;
+    .ohif-check-container
+      margin-bottom: 5px;
+      padding-left: 18px;
+      .ohif-check-label
+        text-transform: capitalize;
+        &:hover
+          color: var(--hover-color);
+        .ohif-checkbox
+          border-radius: 3px;
+          background-color: white;
+          width: 12px;
+          height: 12px;
+          top: 22%;
+          &.ohif-checked:after
+            background-color: var(--active-color);
+            top: 17%;
+            left: 17%;
+    .select-ohif
+      color: var(--default-color);
+      border-color: var(--default-color);
+      background-color: black;
+      background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23007CB2%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
+      &:hover
+        color: var(--hover-color);
@@ -1,3 +1,5 @@
+import SlabThicknessToolbarComponent from './toolbarComponents/SlabThicknessToolbarComponent';
+
 const TOOLBAR_BUTTON_TYPES = {
  COMMAND: 'command',
  SET_TOOL_ACTIVE: 'setToolActive',
@@ -31,6 +33,7 @@ const definitions = [
    commandName: 'enableRotateTool',
    commandOptions: {},
  },
+  /*
  {
    id: 'setBlendModeToComposite',
    label: 'Disable MIP',
@@ -68,6 +71,50 @@ const definitions = [
    commandName: 'decreaseSlabThickness',
    commandOptions: {},
  },
+  */
+  {
+    id: 'changeSlabThickness',
+    label: 'Slab Thickness',
+    icon: 'soft-tissue',
+    CustomComponent: SlabThicknessToolbarComponent,
+    commandName: 'setSlabThickness',
+    actionButton: {
+      id: 'setSlabThickness',
+      label: 'slider',
+      type: TOOLBAR_BUTTON_TYPES.COMMAND,
+      commandName: 'setSlabThickness',
+      commandOptions: {},
+    },
+    deactivateButton: {
+      id: 'setBlendModeToComposite',
+      type: TOOLBAR_BUTTON_TYPES.SET_TOOL_ACTIVE,
+      commandName: 'setBlendModeToComposite',
+      commandOptions: {},
+    },
+    operationButtons: [
+      {
+        id: 'setBlendModeToMaximumIntensity',
+        label: 'MIP',
+        type: TOOLBAR_BUTTON_TYPES.SET_TOOL_ACTIVE,
+        commandName: 'setBlendModeToMaximumIntensity',
+        commandOptions: {},
+      },
+      {
+        id: 'setBlendModeToMinimumIntensity',
+        label: 'MinIP',
+        type: TOOLBAR_BUTTON_TYPES.SET_TOOL_ACTIVE,
+        commandName: 'setBlendModeToMinimumIntensity',
+        commandOptions: {},
+      },
+      {
+        id: 'setBlendModeToAverageIntensity',
+        label: 'AvgIP',
+        type: TOOLBAR_BUTTON_TYPES.SET_TOOL_ACTIVE,
+        commandName: 'setBlendModeToAverageIntensity',
+        commandOptions: {},
+      },
+    ],
+  },
 ];

 export default {
@@ -0,0 +1,28 @@
+const subscriptions = [];
+
+// This is pretty hacky right now, but it makes sure we don't keep adding subscriptions.
+// TODO -> Nuke this and move it up a layer once we have more vigorous layout support.
+
+const vtkViewportSubscriptionManager = {
+  subscriptions,
+  pushSubscription(viewportIndex, subscription) {
+    if (!Array.isArray(subscriptions[viewportIndex])) {
+      subscriptions[viewportIndex] = [];
+    }
+
+    subscriptions[viewportIndex].push(subscription);
+  },
+  unsubscribe(viewportIndex) {
+    if (!subscriptions[viewportIndex]) {
+      return;
+    }
+
+    while (subscriptions[viewportIndex].length) {
+      subscriptions[viewportIndex].pop().unsubscribe();
+    }
+
+    subscriptions[viewportIndex] = null;
+  },
+};
+
+export default vtkViewportSubscriptionManager;
@@ -22,6 +22,7 @@
    "dev:project": ".scripts/dev.sh",
    "dev:orthanc": "lerna run dev:orthanc --stream",
    "orthanc:up": "docker-compose -f .docker/Nginx-Orthanc/docker-compose.yml up",
+    "start": "yarn run dev",
    "test": "yarn run test:unit",
    "test:unit": "jest --collectCoverage",
    "test:unit:ci": "lerna run test:unit:ci --parallel --stream",
@@ -3,6 +3,44 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

+# [1.2.0](https://github.com/OHIF/Viewers/compare/@ohif/core@1.1.0...@ohif/core@1.2.0) (2019-10-09)
+
+
+### Bug Fixes
+
+* OHIF-1002 Study lazy load should be true by default ([#1004](https://github.com/OHIF/Viewers/issues/1004)) ([66d8bc6](https://github.com/OHIF/Viewers/commit/66d8bc6))
+
+
+### Features
+
+* Allow a server requestOptions.auth to be a function that returns the Authorization header. ([#928](https://github.com/OHIF/Viewers/issues/928)) ([0064a4b](https://github.com/OHIF/Viewers/commit/0064a4b))
+
+
+
+
+
+# [1.1.0](https://github.com/OHIF/Viewers/compare/@ohif/core@1.0.2...@ohif/core@1.1.0) (2019-10-03)
+
+
+### Features
+
+* Use QIDO + WADO to load series metadata individually rather than the entire study metadata at once ([#953](https://github.com/OHIF/Viewers/issues/953)) ([9e10c2b](https://github.com/OHIF/Viewers/commit/9e10c2b))
+
+
+
+
+
+## [1.0.2](https://github.com/OHIF/Viewers/compare/@ohif/core@1.0.1...@ohif/core@1.0.2) (2019-10-02)
+
+
+### Bug Fixes
+
+* Temporarily sort SEG files to the end of the display set list as a workaround for several metadata issues ([#987](https://github.com/OHIF/Viewers/issues/987)) ([b3b4c10](https://github.com/OHIF/Viewers/commit/b3b4c10))
+
+
+
+
+
 ## [1.0.1](https://github.com/OHIF/Viewers/compare/@ohif/core@1.0.0...@ohif/core@1.0.1) (2019-09-27)


@@ -1,6 +1,6 @@
 {
  "name": "@ohif/core",
-  "version": "1.0.1",
+  "version": "1.2.0",
  "description": "Generic business logic for web-based medical imaging applications",
  "author": "OHIF Core Team",
  "license": "MIT",
@@ -9,7 +9,7 @@ import user from '../user';
 * @export
 * @param {Object} [server={}]
 * @param {Object} [server.requestOptions]
- * @param {string} [server.requestOptions.auth]
+ * @param {string|function} [server.requestOptions.auth]
 * @returns {Object} { Authorization }
 */
 export default function getAuthorizationHeader({ requestOptions } = {}) {
@@ -19,8 +19,13 @@ export default function getAuthorizationHeader({ requestOptions } = {}) {
  const accessToken = user && user.getAccessToken && user.getAccessToken();

  if (requestOptions && requestOptions.auth) {
-    // HTTP Basic Auth (user:password)
-    headers.Authorization = `Basic ${btoa(requestOptions.auth)}`;
+    if (typeof requestOptions.auth === 'function') {
+      // Custom Auth Header
+      headers.Authorization = requestOptions.auth(requestOptions);
+    } else {
+      // HTTP Basic Auth (user:password)
+      headers.Authorization = `Basic ${btoa(requestOptions.auth)}`;
+    }
  } else if (accessToken) {
    headers.Authorization = `Bearer ${accessToken}`;
  }
@@ -7,10 +7,7 @@ describe('getAuthorizationHeader', () => {
  it('should return a HTTP Basic Auth when server contains requestOptions.auth', () => {
    const validServer = {
      requestOptions: {
-        auth: {
-          user: 'dummy_user',
-          password: 'dummy_password',
-        },
+        auth: 'dummy_user:dummy_password',
      },
    };

@@ -26,9 +23,7 @@ describe('getAuthorizationHeader', () => {
  it('should return a HTTP Basic Auth when server contains requestOptions.auth even though there is no password', () => {
    const validServerWithoutPassword = {
      requestOptions: {
-        auth: {
-          user: 'dummy_user',
-        },
+        auth: 'dummy_user',
      },
    };

@@ -43,22 +38,19 @@ describe('getAuthorizationHeader', () => {
    expect(authentication).toEqual(expectedAuthorizationHeader);
  });

-  it('should return a HTTP Basic Auth when server contains requestOptions.auth even though there is no username', () => {
-    const validServerWithoutPassword = {
+  it('should return a HTTP Basic Auth when server contains requestOptions.auth custom function', () => {
+    const validServerCustomAuth = {
      requestOptions: {
-        auth: {
-          user: 'dummy_user',
-        },
+        auth: options => `Basic ${options.token}`,
+        token: 'ZHVtbXlfdXNlcjpkdW1teV9wYXNzd29yZA==',
      },
    };

    const expectedAuthorizationHeader = {
-      Authorization: `Basic ${btoa(
-        validServerWithoutPassword.requestOptions.auth
-      )}`,
+      Authorization: `Basic ${validServerCustomAuth.requestOptions.token}`,
    };

-    const authentication = getAuthorizationHeader(validServerWithoutPassword);
+    const authentication = getAuthorizationHeader(validServerCustomAuth);

    expect(authentication).toEqual(expectedAuthorizationHeader);
  });
@@ -1,10 +1,12 @@
 // import { api } from 'dicomweb-client'

 const api = {
-  DICOMwebClient: jest.fn().mockImplementation(() => {
-    return {
-      retrieveStudyMetadata: jest.fn().mockResolvedValue([]),
-    };
+  DICOMwebClient: jest.fn().mockImplementation(function() {
+    this.retrieveStudyMetadata = jest.fn().mockResolvedValue([]);
+    this.retrieveSeriesMetadata = jest.fn(function(options) {
+      const { studyInstanceUID, seriesInstanceUID } = options;
+      return Promise.resolve([{ studyInstanceUID, seriesInstanceUID }]);
+    });
  }),
 };

@@ -8,7 +8,8 @@ import { SeriesMetadata } from './SeriesMetadata';
 // - createStacks
 import { api } from 'dicomweb-client';
 // - createStacks
-import { isImage } from './../../utils/isImage';
+import { isImage } from '../../utils/isImage';
+import isLowPriorityModality from '../../utils/isLowPriorityModality';

 export class StudyMetadata extends Metadata {
  constructor(data, uid) {
@@ -88,6 +89,100 @@ export class StudyMetadata extends Metadata {
    return this._displaySets.slice();
  }

+  /**
+   * Split a series metadata object into display sets
+   * @param {Array} sopClassHandlerModules List of SOP Class Modules
+   * @param {SeriesMetadata} series The series metadata object from which the display sets will be created
+   * @param {Array} [givenDisplaySets] An optional list to which the display sets will be appended
+   * @returns {Array} The list of display sets created for the given series object
+   */
+  _createDisplaySetsForSeries(
+    sopClassHandlerModules,
+    series,
+    givenDisplaySets
+  ) {
+    const study = this;
+    const displaySets = Array.isArray(givenDisplaySets) ? givenDisplaySets : [];
+    const anyInstances = series.getInstanceCount() > 0;
+
+    if (!anyInstances) {
+      return;
+    }
+
+    const sopClassUids = getSopClassUids(series);
+
+    if (sopClassHandlerModules && sopClassHandlerModules.length > 0) {
+      const displaySet = _getDisplaySetFromSopClassModule(
+        sopClassHandlerModules,
+        series,
+        study,
+        sopClassUids
+      );
+      if (displaySet) {
+        displaySet.sopClassModule = true;
+        displaySets.push(displaySet);
+        return;
+      }
+    }
+
+    // WE NEED A BETTER WAY TO NOTE THAT THIS IS THE DEFAULT BEHAVIOR FOR LOADING
+    // A DISPLAY SET IF THERE IS NO MATCHING SOP CLASS PLUGIN
+
+    // Search through the instances (InstanceMetadata object) of this series
+    // Split Multi-frame instances and Single-image modalities
+    // into their own specific display sets. Place the rest of each
+    // series into another display set.
+    const stackableInstances = [];
+    series.forEachInstance(instance => {
+      // All imaging modalities must have a valid value for sopClassUid (x00080016) or rows (x00280010)
+      if (
+        !isImage(instance.getRawValue('x00080016')) &&
+        !instance.getRawValue('x00280010')
+      ) {
+        return;
+      }
+
+      let displaySet;
+
+      if (isMultiFrame(instance)) {
+        displaySet = makeDisplaySet(series, [instance]);
+        displaySet.setAttributes({
+          sopClassUids,
+          isClip: true,
+          seriesInstanceUid: series.getSeriesInstanceUID(),
+          studyInstanceUid: study.getStudyInstanceUID(), // Include the study instance Uid for drag/drop purposes
+          numImageFrames: instance.getRawValue('x00280008'), // Override the default value of instances.length
+          instanceNumber: instance.getRawValue('x00200013'), // Include the instance number
+          acquisitionDatetime: instance.getRawValue('x0008002a'), // Include the acquisition datetime
+        });
+        displaySets.push(displaySet);
+      } else if (isSingleImageModality(instance.modality)) {
+        displaySet = makeDisplaySet(series, [instance]);
+        displaySet.setAttributes({
+          sopClassUids,
+          studyInstanceUid: study.getStudyInstanceUID(), // Include the study instance Uid
+          seriesInstanceUid: series.getSeriesInstanceUID(),
+          instanceNumber: instance.getRawValue('x00200013'), // Include the instance number
+          acquisitionDatetime: instance.getRawValue('x0008002a'), // Include the acquisition datetime
+        });
+        displaySets.push(displaySet);
+      } else {
+        stackableInstances.push(instance);
+      }
+    });
+
+    if (stackableInstances.length) {
+      const displaySet = makeDisplaySet(series, stackableInstances);
+      displaySet.setAttribute('studyInstanceUid', study.getStudyInstanceUID());
+      displaySet.setAttributes({
+        sopClassUids,
+      });
+      displaySets.push(displaySet);
+    }
+
+    return displaySets;
+  }
+
  /**
   * Creates a set of series to be placed in the Study Metadata
   * The series that appear in the Study Metadata must represent
@@ -101,104 +196,44 @@ export class StudyMetadata extends Metadata {
   * @returns {Array} An array of series to be placed in the Study Metadata
   */
  createDisplaySets(sopClassHandlerModules) {
-    const study = this;
    const displaySets = [];
-    const anyDisplaySets = study.getSeriesCount();
-    const anySopClassHandlerModules =
-      sopClassHandlerModules && sopClassHandlerModules.length > 0;
+    const anyDisplaySets = this.getSeriesCount();

    if (!anyDisplaySets) {
      return displaySets;
    }

    // Loop through the series (SeriesMetadata)
-    this.forEachSeries(series => {
-      const anyInstances = series.getInstanceCount() > 0;
-      if (!anyInstances) {
-        return;
-      }
-
-      const sopClassUids = getSopClassUids(series);
-
-      if (anySopClassHandlerModules) {
-        const displaySet = _getDisplaySetFromSopClassModule(
+    this.forEachSeries(
+      series =>
+        void this._createDisplaySetsForSeries(
          sopClassHandlerModules,
          series,
-          study,
-          sopClassUids
-        );
+          displaySets
+        )
+    );

-        if (displaySet) {
-          displaySet.sopClassModule = true;
-          displaySets.push(displaySet);
+    return sortDisplaySetList(displaySets);
+  }

-          return;
-        }
-      }
+  sortDisplaySets() {
+    sortDisplaySetList(this._displaySets);
+  }

-      // WE NEED A BETTER WAY TO NOTE THAT THIS IS THE DEFAULT BEHAVIOR FOR LOADING
-      // A DISPLAY SET IF THERE IS NO MATCHING SOP CLASS PLUGIN
-
-      // Search through the instances (InstanceMetadata object) of this series
-      // Split Multi-frame instances and Single-image modalities
-      // into their own specific display sets. Place the rest of each
-      // series into another display set.
-      const stackableInstances = [];
-      series.forEachInstance(instance => {
-        // All imaging modalities must have a valid value for sopClassUid (x00080016) or rows (x00280010)
-        if (
-          !isImage(instance.getRawValue('x00080016')) &&
-          !instance.getRawValue('x00280010')
-        ) {
-          return;
-        }
-
-        let displaySet;
-
-        if (isMultiFrame(instance)) {
-          displaySet = makeDisplaySet(series, [instance]);
-          displaySet.setAttributes({
-            sopClassUids,
-            isClip: true,
-            seriesInstanceUid: series.getSeriesInstanceUID(),
-            studyInstanceUid: study.getStudyInstanceUID(), // Include the study instance Uid for drag/drop purposes
-            numImageFrames: instance.getRawValue('x00280008'), // Override the default value of instances.length
-            instanceNumber: instance.getRawValue('x00200013'), // Include the instance number
-            acquisitionDatetime: instance.getRawValue('x0008002a'), // Include the acquisition datetime
-          });
-          displaySets.push(displaySet);
-        } else if (isSingleImageModality(instance.modality)) {
-          displaySet = makeDisplaySet(series, [instance]);
-          displaySet.setAttributes({
-            sopClassUids,
-            studyInstanceUid: study.getStudyInstanceUID(), // Include the study instance Uid
-            seriesInstanceUid: series.getSeriesInstanceUID(),
-            instanceNumber: instance.getRawValue('x00200013'), // Include the instance number
-            acquisitionDatetime: instance.getRawValue('x0008002a'), // Include the acquisition datetime
-          });
-          displaySets.push(displaySet);
-        } else {
-          stackableInstances.push(instance);
-        }
-      });
-
-      if (stackableInstances.length) {
-        const displaySet = makeDisplaySet(series, stackableInstances);
-        displaySet.setAttribute(
-          'studyInstanceUid',
-          study.getStudyInstanceUID()
-        );
-        displaySet.setAttributes({
-          sopClassUids,
-        });
-        displaySets.push(displaySet);
-      }
-    });
-
-    // TODO
-    displaySets.sort(_sortBySeriesNumber);
-
-    return displaySets;
+  /**
+   * Method to append display sets from a given series to the internal list of display sets
+   * @param {Array} sopClassHandlerModules A list of SOP Class Handler Modules
+   * @param {SeriesMetadata} series The series metadata object from which the display sets will be created
+   * @returns {boolean} Returns true on success or false on failure (e.g., the series does not belong to this study)
+   */
+  createAndAddDisplaySetsForSeries(sopClassHandlerModules, series) {
+    if (this.containsSeries(series)) {
+      this.setDisplaySets(
+        this._createDisplaySetsForSeries(sopClassHandlerModules, series)
+      );
+      return true;
+    }
+    return false;
  }

  /**
@@ -206,7 +241,10 @@ export class StudyMetadata extends Metadata {
   * @param {Array} displaySets Array of display sets (ImageSet[])
   */
  setDisplaySets(displaySets) {
-    displaySets.forEach(displaySet => this.addDisplaySet(displaySet));
+    if (Array.isArray(displaySets) && displaySets.length > 0) {
+      displaySets.forEach(displaySet => this.addDisplaySet(displaySet));
+      this.sortDisplaySets();
+    }
  }

  /**
@@ -320,6 +358,12 @@ export class StudyMetadata extends Metadata {
    return found;
  }

+  containsSeries(series) {
+    return (
+      series instanceof SeriesMetadata && this._series.indexOf(series) >= 0
+    );
+  }
+
  /**
   * Retrieve the number of series within the current study.
   * @returns {number} The number of series in the current study.
@@ -650,13 +694,51 @@ function _getDisplaySetFromSopClassModule(
 }

 /**
+ * Sort series primarily by modality (i.e., series with references to other
+ * series like SEG, KO or PR are grouped in the end of the list) and then by
+ * series number:
+ *
+ *  --------
+ * | CT #3  |
+ * | CT #4  |
+ * | CT #5  |
+ *  --------
+ * | SEG #1 |
+ * | SEG #2 |
+ *  --------
 *
 * @param {*} a - DisplaySet
 * @param {*} b - DisplaySet
 */
-function _sortBySeriesNumber(a, b) {
+
+function seriesSortingCriteria(a, b) {
+  const isLowPriorityA = isLowPriorityModality(a.modality);
+  const isLowPriorityB = isLowPriorityModality(b.modality);
+  if (!isLowPriorityA && isLowPriorityB) {
+    return -1;
+  }
+  if (isLowPriorityA && !isLowPriorityB) {
+    return 1;
+  }
+  return sortBySeriesNumber(a, b);
+}
+
+/**
+ * Sort series by series number. Series with low
+ * @param {*} a - DisplaySet
+ * @param {*} b - DisplaySet
+ */
+function sortBySeriesNumber(a, b) {
  const seriesNumberAIsGreaterOrUndefined =
    a.seriesNumber > b.seriesNumber || (!a.seriesNumber && b.seriesNumber);

  return seriesNumberAIsGreaterOrUndefined ? 1 : -1;
 }
+
+/**
+ * Sorts a list of display set objects
+ * @param {Array} list A list of display sets to be sorted
+ */
+function sortDisplaySetList(list) {
+  return list.sort(seriesSortingCriteria);
+}
@@ -1,5 +1,8 @@
 import { api } from 'dicomweb-client';
 import DICOMWeb from '../../../DICOMWeb/';
+import isLowPriorityModality from '../../../utils/isLowPriorityModality';
+
+const INFO = Symbol('INFO');

 const WADOProxy = {
  convertURL: (url, server) => {
@@ -94,9 +97,7 @@ function buildInstanceWadoRsUri(
  seriesInstanceUid,
  sopInstanceUid
 ) {
-  return `${
-    server.wadoRoot
-  }/studies/${studyInstanceUid}/series/${seriesInstanceUid}/instances/${sopInstanceUid}`;
+  return `${server.wadoRoot}/studies/${studyInstanceUid}/series/${seriesInstanceUid}/instances/${sopInstanceUid}`;
 }

 function buildInstanceFrameWadoRsUri(
@@ -166,9 +167,9 @@ function getPaletteColor(server, instance, tag, lutDescriptor) {
  };

  const arrayBufferToPaletteColorLUT = result => {
-    const arraybuffer = result[0]
-    const byteArray = new Uint8Array(arraybuffer)
-    const lut = []
+    const arraybuffer = result[0];
+    const byteArray = new Uint8Array(arraybuffer);
+    const lut = [];

    for (let i = 0; i < numLutEntries; i++) {
      if (bits === 16) {
@@ -271,200 +272,338 @@ function getRadiopharmaceuticalInfo(instance) {
  };
 }

+async function makeSOPInstance(server, study, instance) {
+  const { studyInstanceUid } = study;
+  const seriesInstanceUid = DICOMWeb.getString(instance['0020000E']);
+  let series = study.seriesMap[seriesInstanceUid];
+
+  if (!series) {
+    series = {
+      seriesInstanceUid,
+      seriesDescription: DICOMWeb.getString(instance['0008103E']),
+      modality: DICOMWeb.getString(instance['00080060']),
+      seriesNumber: DICOMWeb.getNumber(instance['00200011']),
+      seriesDate: DICOMWeb.getString(instance['00080021']),
+      seriesTime: DICOMWeb.getString(instance['00080031']),
+      instances: [],
+    };
+    study.seriesMap[seriesInstanceUid] = series;
+    study.seriesList.push(series);
+  }
+
+  const sopInstanceUid = DICOMWeb.getString(instance['00080018']);
+  const wadouri = buildInstanceWadoUrl(
+    server,
+    studyInstanceUid,
+    seriesInstanceUid,
+    sopInstanceUid
+  );
+  const baseWadoRsUri = buildInstanceWadoRsUri(
+    server,
+    studyInstanceUid,
+    seriesInstanceUid,
+    sopInstanceUid
+  );
+  const wadorsuri = buildInstanceFrameWadoRsUri(
+    server,
+    studyInstanceUid,
+    seriesInstanceUid,
+    sopInstanceUid
+  );
+
+  const sopInstance = {
+    imageType: DICOMWeb.getString(instance['00080008']),
+    sopClassUid: DICOMWeb.getString(instance['00080016']),
+    modality: DICOMWeb.getString(instance['00080060']),
+    sopInstanceUid,
+    instanceNumber: DICOMWeb.getNumber(instance['00200013']),
+    imagePositionPatient: DICOMWeb.getString(instance['00200032']),
+    imageOrientationPatient: DICOMWeb.getString(instance['00200037']),
+    frameOfReferenceUID: DICOMWeb.getString(instance['00200052']),
+    sliceLocation: DICOMWeb.getNumber(instance['00201041']),
+    samplesPerPixel: DICOMWeb.getNumber(instance['00280002']),
+    photometricInterpretation: DICOMWeb.getString(instance['00280004']),
+    planarConfiguration: DICOMWeb.getNumber(instance['00280006']),
+    rows: DICOMWeb.getNumber(instance['00280010']),
+    columns: DICOMWeb.getNumber(instance['00280011']),
+    pixelSpacing: DICOMWeb.getString(instance['00280030']),
+    pixelAspectRatio: DICOMWeb.getString(instance['00280034']),
+    bitsAllocated: DICOMWeb.getNumber(instance['00280100']),
+    bitsStored: DICOMWeb.getNumber(instance['00280101']),
+    highBit: DICOMWeb.getNumber(instance['00280102']),
+    pixelRepresentation: DICOMWeb.getNumber(instance['00280103']),
+    smallestPixelValue: DICOMWeb.getNumber(instance['00280106']),
+    largestPixelValue: DICOMWeb.getNumber(instance['00280107']),
+    windowCenter: DICOMWeb.getString(instance['00281050']),
+    windowWidth: DICOMWeb.getString(instance['00281051']),
+    rescaleIntercept: DICOMWeb.getNumber(instance['00281052']),
+    rescaleSlope: DICOMWeb.getNumber(instance['00281053']),
+    rescaleType: DICOMWeb.getNumber(instance['00281054']),
+    sourceImageInstanceUid: getSourceImageInstanceUid(instance),
+    laterality: DICOMWeb.getString(instance['00200062']),
+    viewPosition: DICOMWeb.getString(instance['00185101']),
+    acquisitionDateTime: DICOMWeb.getString(instance['0008002A']),
+    numberOfFrames: DICOMWeb.getNumber(instance['00280008']),
+    frameIncrementPointer: getFrameIncrementPointer(instance['00280009']),
+    frameTime: DICOMWeb.getNumber(instance['00181063']),
+    frameTimeVector: parseFloatArray(DICOMWeb.getString(instance['00181065'])),
+    sliceThickness: DICOMWeb.getNumber(instance['00180050']),
+    spacingBetweenSlices: DICOMWeb.getString(instance['00180088']),
+    lossyImageCompression: DICOMWeb.getString(instance['00282110']),
+    derivationDescription: DICOMWeb.getString(instance['00282111']),
+    lossyImageCompressionRatio: DICOMWeb.getString(instance['00282112']),
+    lossyImageCompressionMethod: DICOMWeb.getString(instance['00282114']),
+    echoNumber: DICOMWeb.getString(instance['00180086']),
+    contrastBolusAgent: DICOMWeb.getString(instance['00180010']),
+    radiopharmaceuticalInfo: getRadiopharmaceuticalInfo(instance),
+    baseWadoRsUri: baseWadoRsUri,
+    wadouri: WADOProxy.convertURL(wadouri, server),
+    wadorsuri: WADOProxy.convertURL(wadorsuri, server),
+    wadoRoot: server.wadoRoot,
+    imageRendering: server.imageRendering,
+    thumbnailRendering: server.thumbnailRendering,
+  };
+
+  // Get additional information if the instance uses "PALETTE COLOR" photometric interpretation
+  if (sopInstance.photometricInterpretation === 'PALETTE COLOR') {
+    const redPaletteColorLookupTableDescriptor = parseFloatArray(
+      DICOMWeb.getString(instance['00281101'])
+    );
+    const greenPaletteColorLookupTableDescriptor = parseFloatArray(
+      DICOMWeb.getString(instance['00281102'])
+    );
+    const bluePaletteColorLookupTableDescriptor = parseFloatArray(
+      DICOMWeb.getString(instance['00281103'])
+    );
+    const palettes = await getPaletteColors(
+      server,
+      instance,
+      redPaletteColorLookupTableDescriptor
+    );
+
+    if (palettes) {
+      if (palettes.uid) {
+        sopInstance.paletteColorLookupTableUID = palettes.uid;
+      }
+
+      sopInstance.redPaletteColorLookupTableData = palettes.red;
+      sopInstance.greenPaletteColorLookupTableData = palettes.green;
+      sopInstance.bluePaletteColorLookupTableData = palettes.blue;
+      sopInstance.redPaletteColorLookupTableDescriptor = redPaletteColorLookupTableDescriptor;
+      sopInstance.greenPaletteColorLookupTableDescriptor = greenPaletteColorLookupTableDescriptor;
+      sopInstance.bluePaletteColorLookupTableDescriptor = bluePaletteColorLookupTableDescriptor;
+    }
+  }
+
+  series.instances.push(sopInstance);
+  return sopInstance;
+}
+
+/**
+ * Create a plain JS object that describes a study (a study descriptor object)
+ * @param {Object} server Object with server configuration paramenters
+ * @param {Object} aSopInstance a SOP Instance from which study information will be added
+ */
+function createStudy(server, aSopInstance) {
+  // TODO: Pass a reference ID to the server instead of including the URLs here
+  return {
+    seriesList: [],
+    seriesMap: Object.create(null),
+    seriesLoader: null,
+    wadoUriRoot: server.wadoUriRoot,
+    wadoRoot: server.wadoRoot,
+    qidoRoot: server.qidoRoot,
+    patientName: DICOMWeb.getName(aSopInstance['00100010']),
+    patientId: DICOMWeb.getString(aSopInstance['00100020']),
+    patientAge: DICOMWeb.getNumber(aSopInstance['00101010']),
+    patientSize: DICOMWeb.getNumber(aSopInstance['00101020']),
+    patientWeight: DICOMWeb.getNumber(aSopInstance['00101030']),
+    accessionNumber: DICOMWeb.getString(aSopInstance['00080050']),
+    studyDate: DICOMWeb.getString(aSopInstance['00080020']),
+    modalities: DICOMWeb.getString(aSopInstance['00080061']),
+    studyDescription: DICOMWeb.getString(aSopInstance['00081030']),
+    imageCount: DICOMWeb.getString(aSopInstance['00201208']),
+    studyInstanceUid: DICOMWeb.getString(aSopInstance['0020000D']),
+    institutionName: DICOMWeb.getString(aSopInstance['00080080']),
+  };
+}
+
+/**
+ * Add a list of SOP Instances to a given study object descriptor
+ * @param {Object} server Object with server configuration paramenters
+ * @param {Object} study The study descriptor to which the given SOP instances will be added
+ * @param {Array} sopInstanceList A list of SOP instance objects
+ */
+async function addInstancesToStudy(server, study, sopInstanceList) {
+  return Promise.all(
+    sopInstanceList.map(function(sopInstance) {
+      return makeSOPInstance(server, study, sopInstance);
+    })
+  );
+}
+
 /**
 * Parses result data from a WADO search into Study MetaData
 * Returns an object populated with study metadata, including the
 * series list.
 *
- * @param server
- * @param studyInstanceUid
- * @param resultData
- * @returns {{seriesList: Array, patientName: *, patientId: *, accessionNumber: *, studyDate: *, modalities: *, studyDescription: *, imageCount: *, studyInstanceUid: *}}
+ * @param {Object} server Object with server configuration paramenters
+ * @param {Array} sopInstanceList List of SOP Instances that build up to the study
+ * @resolves {{seriesList: Array, patientName: *, patientId: *, accessionNumber: *, studyDate: *, modalities: *, studyDescription: *, imageCount: *, studyInstanceUid: *}}
 */
-async function resultDataToStudyMetadata(server, studyInstanceUid, resultData) {
-  if (!resultData.length) {
-    return;
+async function createStudyFromSOPInstanceList(server, sopInstanceList) {
+  if (Array.isArray(sopInstanceList) && sopInstanceList.length > 0) {
+    const firstSopInstance = sopInstanceList[0];
+    const study = createStudy(server, firstSopInstance);
+    await addInstancesToStudy(server, study, sopInstanceList);
+    return study;
  }
-
-  const anInstance = resultData[0];
-  if (!anInstance) {
-    return;
-  }
-
-  // TODO: Pass a reference ID to the server instead of including the URLs here
-  const studyData = {
-    seriesList: [],
-    wadoUriRoot: server.wadoUriRoot,
-    wadoRoot: server.wadoRoot,
-    qidoRoot: server.qidoRoot,
-    patientName: DICOMWeb.getName(anInstance['00100010']),
-    patientId: DICOMWeb.getString(anInstance['00100020']),
-    patientAge: DICOMWeb.getNumber(anInstance['00101010']),
-    patientSize: DICOMWeb.getNumber(anInstance['00101020']),
-    patientWeight: DICOMWeb.getNumber(anInstance['00101030']),
-    accessionNumber: DICOMWeb.getString(anInstance['00080050']),
-    studyDate: DICOMWeb.getString(anInstance['00080020']),
-    modalities: DICOMWeb.getString(anInstance['00080061']),
-    studyDescription: DICOMWeb.getString(anInstance['00081030']),
-    imageCount: DICOMWeb.getString(anInstance['00201208']),
-    studyInstanceUid: DICOMWeb.getString(anInstance['0020000D']),
-    institutionName: DICOMWeb.getString(anInstance['00080080']),
-  };
-
-  const seriesMap = {};
-
-  await Promise.all(
-    resultData.map(async function(instance) {
-      const seriesInstanceUid = DICOMWeb.getString(instance['0020000E']);
-      let series = seriesMap[seriesInstanceUid];
-
-      if (!series) {
-        series = {
-          seriesDescription: DICOMWeb.getString(instance['0008103E']),
-          modality: DICOMWeb.getString(instance['00080060']),
-          seriesInstanceUid: seriesInstanceUid,
-          seriesNumber: DICOMWeb.getNumber(instance['00200011']),
-          seriesDate: DICOMWeb.getString(instance['00080021']),
-          seriesTime: DICOMWeb.getString(instance['00080031']),
-          instances: [],
-        };
-        seriesMap[seriesInstanceUid] = series;
-        studyData.seriesList.push(series);
-      }
-
-      const sopInstanceUid = DICOMWeb.getString(instance['00080018']);
-      const wadouri = buildInstanceWadoUrl(
-        server,
-        studyInstanceUid,
-        seriesInstanceUid,
-        sopInstanceUid
-      );
-      const baseWadoRsUri = buildInstanceWadoRsUri(
-        server,
-        studyInstanceUid,
-        seriesInstanceUid,
-        sopInstanceUid
-      );
-      const wadorsuri = buildInstanceFrameWadoRsUri(
-        server,
-        studyInstanceUid,
-        seriesInstanceUid,
-        sopInstanceUid
-      );
-
-      const instanceSummary = {
-        imageType: DICOMWeb.getString(instance['00080008']),
-        sopClassUid: DICOMWeb.getString(instance['00080016']),
-        modality: DICOMWeb.getString(instance['00080060']),
-        sopInstanceUid,
-        instanceNumber: DICOMWeb.getNumber(instance['00200013']),
-        imagePositionPatient: DICOMWeb.getString(instance['00200032']),
-        imageOrientationPatient: DICOMWeb.getString(instance['00200037']),
-        frameOfReferenceUID: DICOMWeb.getString(instance['00200052']),
-        sliceLocation: DICOMWeb.getNumber(instance['00201041']),
-        samplesPerPixel: DICOMWeb.getNumber(instance['00280002']),
-        photometricInterpretation: DICOMWeb.getString(instance['00280004']),
-        planarConfiguration: DICOMWeb.getNumber(instance['00280006']),
-        rows: DICOMWeb.getNumber(instance['00280010']),
-        columns: DICOMWeb.getNumber(instance['00280011']),
-        pixelSpacing: DICOMWeb.getString(instance['00280030']),
-        pixelAspectRatio: DICOMWeb.getString(instance['00280034']),
-        bitsAllocated: DICOMWeb.getNumber(instance['00280100']),
-        bitsStored: DICOMWeb.getNumber(instance['00280101']),
-        highBit: DICOMWeb.getNumber(instance['00280102']),
-        pixelRepresentation: DICOMWeb.getNumber(instance['00280103']),
-        smallestPixelValue: DICOMWeb.getNumber(instance['00280106']),
-        largestPixelValue: DICOMWeb.getNumber(instance['00280107']),
-        windowCenter: DICOMWeb.getString(instance['00281050']),
-        windowWidth: DICOMWeb.getString(instance['00281051']),
-        rescaleIntercept: DICOMWeb.getNumber(instance['00281052']),
-        rescaleSlope: DICOMWeb.getNumber(instance['00281053']),
-        rescaleType: DICOMWeb.getNumber(instance['00281054']),
-        sourceImageInstanceUid: getSourceImageInstanceUid(instance),
-        laterality: DICOMWeb.getString(instance['00200062']),
-        viewPosition: DICOMWeb.getString(instance['00185101']),
-        acquisitionDateTime: DICOMWeb.getString(instance['0008002A']),
-        numberOfFrames: DICOMWeb.getNumber(instance['00280008']),
-        frameIncrementPointer: getFrameIncrementPointer(instance['00280009']),
-        frameTime: DICOMWeb.getNumber(instance['00181063']),
-        frameTimeVector: parseFloatArray(
-          DICOMWeb.getString(instance['00181065'])
-        ),
-        sliceThickness: DICOMWeb.getNumber(instance['00180050']),
-        spacingBetweenSlices: DICOMWeb.getString(instance['00180088']),
-        lossyImageCompression: DICOMWeb.getString(instance['00282110']),
-        derivationDescription: DICOMWeb.getString(instance['00282111']),
-        lossyImageCompressionRatio: DICOMWeb.getString(instance['00282112']),
-        lossyImageCompressionMethod: DICOMWeb.getString(instance['00282114']),
-        echoNumber: DICOMWeb.getString(instance['00180086']),
-        contrastBolusAgent: DICOMWeb.getString(instance['00180010']),
-        radiopharmaceuticalInfo: getRadiopharmaceuticalInfo(instance),
-        baseWadoRsUri: baseWadoRsUri,
-        wadouri: WADOProxy.convertURL(wadouri, server),
-        wadorsuri: WADOProxy.convertURL(wadorsuri, server),
-        wadoRoot: server.wadoRoot,
-        imageRendering: server.imageRendering,
-        thumbnailRendering: server.thumbnailRendering,
-      };
-
-      // Get additional information if the instance uses "PALETTE COLOR" photometric interpretation
-      if (instanceSummary.photometricInterpretation === 'PALETTE COLOR') {
-        const redPaletteColorLookupTableDescriptor = parseFloatArray(
-          DICOMWeb.getString(instance['00281101'])
-        );
-        const greenPaletteColorLookupTableDescriptor = parseFloatArray(
-          DICOMWeb.getString(instance['00281102'])
-        );
-        const bluePaletteColorLookupTableDescriptor = parseFloatArray(
-          DICOMWeb.getString(instance['00281103'])
-        );
-        const palettes = await getPaletteColors(
-          server,
-          instance,
-          redPaletteColorLookupTableDescriptor
-        );
-
-        if (palettes) {
-          if (palettes.uid) {
-            instanceSummary.paletteColorLookupTableUID = palettes.uid;
-          }
-
-          instanceSummary.redPaletteColorLookupTableData = palettes.red;
-          instanceSummary.greenPaletteColorLookupTableData = palettes.green;
-          instanceSummary.bluePaletteColorLookupTableData = palettes.blue;
-          instanceSummary.redPaletteColorLookupTableDescriptor = redPaletteColorLookupTableDescriptor;
-          instanceSummary.greenPaletteColorLookupTableDescriptor = greenPaletteColorLookupTableDescriptor;
-          instanceSummary.bluePaletteColorLookupTableDescriptor = bluePaletteColorLookupTableDescriptor;
-        }
-      }
-
-      series.instances.push(instanceSummary);
-    })
-  );
-
-  return studyData;
+  throw new Error('Failed to create study out of provided SOP instance list');
 }

 /**
- * Retrieve Study MetaData from a DICOM server using a WADO call
- *
- * @param server
- * @param studyInstanceUid
- * @returns {Promise}
+ * Retrieve Study metadata from a DICOM server. If the server is configured to use lazy load, only the first series
+ * will be loaded and the property "studyLoader" will be set to let consumer load remaining series as needed
+ * @param {Object} server Object with server configuration paramenters
+ * @param {string} studyInstanceUid The Study Instance UID of the study which needs to be loaded
+ * @returns {Object} A study descriptor object
 */
 async function RetrieveMetadata(server, studyInstanceUid) {
-  const config = {
+  return (server.enableStudyLazyLoad !== false
+    ? lazyLoadStudyMetadata
+    : loadStudyMetadata)(server, studyInstanceUid);
+}
+
+/**
+ *
+ * @param {*} server
+ * @param {*} studyInstanceUID
+ */
+async function loadStudyMetadata(server, studyInstanceUID) {
+  const dicomWeb = new api.DICOMwebClient({
    url: server.wadoRoot,
    headers: DICOMWeb.getAuthorizationHeader(server),
-  };
-  const dicomWeb = new api.DICOMwebClient(config);
-  const options = {
-    studyInstanceUID: studyInstanceUid,
-  };
+  });
+  return dicomWeb
+    .retrieveStudyMetadata({ studyInstanceUID })
+    .then(result => createStudyFromSOPInstanceList(server, result));
+}

-  return dicomWeb.retrieveStudyMetadata(options).then(result => {
-    return resultDataToStudyMetadata(server, studyInstanceUid, result);
+async function lazyLoadStudyMetadata(server, studyInstanceUid) {
+  const seriesInstanceUids = await searchStudySeries(server, studyInstanceUid);
+  const dicomWeb = new api.DICOMwebClient({
+    url: server.wadoRoot,
+    headers: DICOMWeb.getAuthorizationHeader(server),
+  });
+  const seriesLoader = makeSeriesLoader(
+    dicomWeb,
+    studyInstanceUid,
+    seriesInstanceUids
+  );
+  const firstSeries = await seriesLoader.next();
+  const study = await createStudyFromSOPInstanceList(
+    server,
+    firstSeries.sopInstances
+  );
+  if (seriesLoader.hasNext()) {
+    attachSeriesLoader(server, study, seriesLoader);
+  }
+  return study;
+}
+
+function attachSeriesLoader(server, study, seriesLoader) {
+  study.seriesLoader = Object.freeze({
+    hasNext() {
+      return seriesLoader.hasNext();
+    },
+    async next() {
+      const series = await seriesLoader.next();
+      await addInstancesToStudy(server, study, series.sopInstances);
+      return study.seriesMap[series.seriesInstanceUID];
+    },
  });
 }

+/**
+ * Creates an immutable series loader object which loads each series sequentially using the iterator interface
+ * @param {DICOMWebClient} dicomWebClient The DICOMWebClient instance to be used for series load
+ * @param {string} studyInstanceUID The Study Instance UID from which series will be loaded
+ * @param {Array} seriesInstanceUIDList A list of Series Instance UIDs
+ * @returns {Object} Returns an object which supports loading of instances from each of given Series Instance UID
+ */
+function makeSeriesLoader(
+  dicomWebClient,
+  studyInstanceUID,
+  seriesInstanceUIDList
+) {
+  return Object.freeze({
+    hasNext() {
+      return seriesInstanceUIDList.length > 0;
+    },
+    async next() {
+      const seriesInstanceUID = seriesInstanceUIDList.shift();
+      const sopInstances = await dicomWebClient.retrieveSeriesMetadata({
+        studyInstanceUID,
+        seriesInstanceUID,
+      });
+      return { studyInstanceUID, seriesInstanceUID, sopInstances };
+    },
+  });
+}
+
+/**
+ * Search series of a given study
+ * @param {Object} server Object with server configuration paramenters
+ * @param {string} studyInstanceUID The Study Instance UID to search series from;
+ * @returns {Arrays} A list of Series Instance UIDs
+ */
+async function searchStudySeries(server, studyInstanceUID) {
+  const dicomWeb = new api.DICOMwebClient({
+    url: server.qidoRoot,
+    headers: DICOMWeb.getAuthorizationHeader(server),
+  });
+  const seriesList = await dicomWeb.searchForSeries({ studyInstanceUID });
+  return seriesList
+    .sort(seriesSortingCriteria)
+    .map(series => getSeriesInfo(series).seriesInstanceUid);
+}
+
+/**
+ * Series sorting criteria: series considered low priority are moved to the end
+ * of the list and series number is used to break ties
+ * @param {Object} firstSeries
+ * @param {Object} secondSeries
+ */
+function seriesSortingCriteria(firstSeries, secondSeries) {
+  const a = getSeriesInfo(firstSeries);
+  const b = getSeriesInfo(secondSeries);
+  if (!a.isLowPriority && b.isLowPriority) {
+    return -1;
+  }
+  if (a.isLowPriority && !b.isLowPriority) {
+    return 1;
+  }
+  return a.seriesNumber - b.seriesNumber;
+}
+
+/**
+ * Creates an object with processed series information and saves its reference
+ * inside the series object itself to simplify sorting
+ * @param {Object} series The raw series object
+ */
+function getSeriesInfo(series) {
+  let info = series[INFO];
+  if (!info) {
+    const modality = DICOMWeb.getString(series['00080060'], '').toUpperCase();
+    info = Object.freeze({
+      modality,
+      isLowPriority: isLowPriorityModality(modality),
+      seriesInstanceUid: DICOMWeb.getString(series['0020000E']),
+      seriesNumber: DICOMWeb.getNumber(series['00200011'], 0) || 0,
+    });
+    series[INFO] = info;
+  }
+  return info;
+}
+
 export default RetrieveMetadata;
@@ -0,0 +1,5 @@
+const LOW_PRIORITY_MODALITIES = Object.freeze(['SEG', 'KO', 'PR']);
+
+export default function isLowPriorityModality(modality) {
+  return LOW_PRIORITY_MODALITIES.includes(modality);
+}
@@ -70,32 +70,48 @@ const getWadoRsInstanceMetaData = (study, series, instance) => {
    .toJSON();
 };

-export default function updateMetaDataManager(study) {
-  study.seriesList.forEach(series => {
-    series.instances.forEach(instance => {
-      // Cache just images that are going to be loaded via WADO-RS
-      if (
-        instance.imageRendering !== 'wadors' &&
-        instance.thumbnailRendering !== 'wadors'
-      ) {
-        return;
-      }
+/**
+ * Update metadata manager with instances of a specifc series
+ * @param {Object} study A plain study descriptor object
+ * @param {Object} series A Series descriptor object contaning the instances to be added to the manager
+ */
+function updateMetaDataManagerForSeries(study, series) {
+  series.instances.forEach(instance => {
+    // Cache just images that are going to be loaded via WADO-RS
+    if (
+      instance.imageRendering !== 'wadors' &&
+      instance.thumbnailRendering !== 'wadors'
+    ) {
+      return;
+    }

-      const metaData = getWadoRsInstanceMetaData(study, series, instance);
-      const numberOfFrames = instance.numberOfFrames || 1;
+    const metaData = getWadoRsInstanceMetaData(study, series, instance);
+    const numberOfFrames = instance.numberOfFrames || 1;

-      // We can share the same metaData with all frames because it doesn't have
-      // any frame specific data, such as frameNumber, pixelData, offset, etc.
-      // WADO-RS frame number is 1-based
-      for (let frameNumber = 0; frameNumber < numberOfFrames; frameNumber++) {
-        const imageId = getWADORSImageId(instance, frameNumber);
+    // We can share the same metaData with all frames because it doesn't have
+    // any frame specific data, such as frameNumber, pixelData, offset, etc.
+    // WADO-RS frame number is 1-based
+    for (let frameNumber = 0; frameNumber < numberOfFrames; frameNumber++) {
+      const imageId = getWADORSImageId(instance, frameNumber);

-        // TODO Drop dependency on this
-        cornerstoneWADOImageLoader.wadors.metaDataManager.add(
-          imageId,
-          metaData
-        );
-      }
-    });
+      // TODO Drop dependency on this
+      cornerstoneWADOImageLoader.wadors.metaDataManager.add(imageId, metaData);
+    }
  });
 }
+
+/**
+ * Update metadata manager
+ * @param {Object} study A plain study descriptor object
+ * @param {string} [seriesInstanceUid] The Series Instance UID of the series to be added (Optional)
+ */
+export default function updateMetaDataManager(study, seriesInstanceUid) {
+  if (seriesInstanceUid) {
+    const series = study.seriesMap[seriesInstanceUid];
+    updateMetaDataManagerForSeries(study, series);
+  } else {
+    study.seriesList.forEach(series => {
+      updateMetaDataManagerForSeries(study, series);
+    });
+  }
+}
@@ -3,6 +3,17 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

+## [0.50.5](https://github.com/OHIF/Viewers/compare/@ohif/i18n@0.50.4...@ohif/i18n@0.50.5) (2019-10-04)
+
+
+### Bug Fixes
+
+* CineDialog buttons label ([#998](https://github.com/OHIF/Viewers/issues/998)) ([4df624b](https://github.com/OHIF/Viewers/commit/4df624b))
+
+
+
+
+
 ## [0.50.4](https://github.com/OHIF/Viewers/compare/@ohif/i18n@0.50.3...@ohif/i18n@0.50.4) (2019-09-10)

 **Note:** Version bump only for package @ohif/i18n
@@ -1,6 +1,6 @@
 {
  "name": "@ohif/i18n",
-  "version": "0.50.4",
+  "version": "0.50.5",
  "description": "Internationalization library for The OHIF Viewer",
  "author": "OHIF",
  "license": "MIT",
@@ -1,8 +1,8 @@
 {
-  "Next image": "$t(Common:Play) $t(Common:Image)",
+  "Next image": "$t(Common:Next) $t(Common:Image)",
  "Play / Stop": "$t(Common:Play) / $t(Common:Stop)",
  "Previous image": "$t(Common:Previous) $t(Common:Image)",
  "Skip to first image": "Skip to first $t(Common:Image)",
-  "Skip to last image": "Skip, to last $t(Common:Image)",
+  "Skip to last image": "Skip to last $t(Common:Image)",
  "fps": "fps"
 }
@@ -1,5 +1,5 @@
 {
-  "Next image": " $t(Common:Image) $t(Common:Next)",
+  "Next image": "$t(Common:Image) $t(Common:Next)",
  "Play / Stop": "$t(Common:Play) / Stop",
  "Previous image": "$t(Common:Image) $t(Common:Previous)",
  "Skip to first image": "Ir a la primera $t(Common:Image)",
@@ -1,5 +1,5 @@
 {
-  "Next image": "$t(Common:Play) $t(Common:Image)",
+  "Next image": "$t(Common:Next) $t(Common:Image)",
  "Play / Stop": "$t(Common:Play) / $t(Common:Stop)",
  "Previous image": "$t(Common:Previous) $t(Common:Image)",
  "Skip to first image": "$t(Common:Image)最初にスキップ",
@@ -1,5 +1,5 @@
 {
-  "Next image": "$t(Common:Play) $t(Common:Image)",
+  "Next image": "$t(Common:Next) $t(Common:Image)",
  "Play / Stop": "$t(Common:Play) / $t(Common:Stop)",
  "Previous image": "$t(Common:Previous) $t(Common:Image)",
  "Skip to first image": "Bỏ qua đến đầu $t(Common:Image)",
@@ -3,6 +3,50 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

+## [0.53.1](https://github.com/OHIF/Viewers/compare/@ohif/ui@0.53.0...@ohif/ui@0.53.1) (2019-10-04)
+
+
+### Bug Fixes
+
+* Move Series Information to Separate Row ([#990](https://github.com/OHIF/Viewers/issues/990)) ([458d310](https://github.com/OHIF/Viewers/commit/458d310))
+
+
+
+
+
+# [0.53.0](https://github.com/OHIF/Viewers/compare/@ohif/ui@0.52.0...@ohif/ui@0.53.0) (2019-10-03)
+
+
+### Features
+
+* Use QIDO + WADO to load series metadata individually rather than the entire study metadata at once ([#953](https://github.com/OHIF/Viewers/issues/953)) ([9e10c2b](https://github.com/OHIF/Viewers/commit/9e10c2b))
+
+
+
+
+
+# [0.52.0](https://github.com/OHIF/Viewers/compare/@ohif/ui@0.51.3...@ohif/ui@0.52.0) (2019-10-01)
+
+
+### Features
+
+* 🎸 MPR UI improvements. Added MinIP, AvgIP, slab thickness slider and mode toggle ([#947](https://github.com/OHIF/Viewers/issues/947)) ([c79c0c3](https://github.com/OHIF/Viewers/commit/c79c0c3))
+
+
+
+
+
+## [0.51.3](https://github.com/OHIF/Viewers/compare/@ohif/ui@0.51.2...@ohif/ui@0.51.3) (2019-10-01)
+
+
+### Bug Fixes
+
+* Address issues with touch devices and drag/drop causing crashes ([#982](https://github.com/OHIF/Viewers/issues/982)) ([cf40a83](https://github.com/OHIF/Viewers/commit/cf40a83))
+
+
+
+
+
 ## [0.51.2](https://github.com/OHIF/Viewers/compare/@ohif/ui@0.51.1...@ohif/ui@0.51.2) (2019-09-26)


@@ -1,6 +1,6 @@
 {
  "name": "@ohif/ui",
-  "version": "0.51.2",
+  "version": "0.53.1",
  "description": "A set of React components for Medical Imaging Viewers",
  "author": "OHIF Contributors",
  "license": "MIT",
@@ -6,15 +6,29 @@ export class Checkbox extends Component {
  static propTypes = {
    label: PropTypes.string.isRequired,
    checked: PropTypes.bool,
+    onChange: PropTypes.func,
  };

  constructor(props) {
    super(props);
-    this.state = { checked: props.checked, label: props.label };
+    this.state = { checked: !!props.checked, label: props.label };
  }

  handleChange(e) {
-    this.setState({ checked: e.target.checked });
+    const checked = e.target.checked;
+    this.setState({ checked });
+    if (this.props.onChange) this.props.onChange(checked);
+  }
+
+  componentDidUpdate(props) {
+    const { checked = false, label } = props;
+
+    if (this.state.checked !== checked || this.state.label !== label) {
+      this.setState({
+        checked,
+        label,
+      });
+    }
  }

  render() {
@@ -32,9 +46,7 @@ export class Checkbox extends Component {
            <input
              type="checkbox"
              checked={this.state.checked}
-              onChange={e => {
-                this.handleChange(e);
-              }}
+              onChange={this.handleChange.bind(this)}
            />
            {checkbox}
            {this.state.label}
@@ -13,6 +13,7 @@ import {
  UserPreferencesModal,
 } from './userPreferencesModal';

+import { Checkbox } from './checkbox';
 import { CineDialog } from './cineDialog';
 import { QuickSwitch } from './quickSwitch';
 import { RoundedButtonGroup } from './roundedButtonGroup';
@@ -23,6 +24,7 @@ import { ToolbarSection } from './toolbarSection';
 import { Tooltip } from './tooltip';

 export {
+  Checkbox,
  CineDialog,
  ExampleDropTarget,
  LayoutButton,
@@ -1,3 +1,4 @@
+/* global cornerstone */
 import './ImageThumbnail.styl';

 import React, { PureComponent } from 'react';
@@ -12,25 +13,6 @@ import ViewportLoadingIndicator from '../../viewer/ViewportLoadingIndicator';
 // - Pass in the entire load and render function as a prop?
 //import cornerstone from 'cornerstone-core';

-/**
- * Asynchronous wrapper around Cornerstone's renderToCanvas method.
- *
- * @param {HTMLElement} canvasElement An HTML <canvas> element
- * @param {Image} image A Cornerstone Image
- *
- * @return {Promise} A promise tracking the progress of the rendering. Resolves empty.
- */
-function renderAsync(canvasElement, image) {
-  return new Promise((resolve, reject) => {
-    try {
-      cornerstone.renderToCanvas(canvasElement, image);
-      resolve();
-    } catch (error) {
-      reject(error);
-    }
-  });
-}
-
 export default class ImageThumbnail extends PureComponent {
  static propTypes = {
    imageSrc: PropTypes.string,
@@ -52,40 +34,32 @@ export default class ImageThumbnail extends PureComponent {
    super(props);

    this.canvas = React.createRef();
-
-    const renderIntoCanvas = this.props.imageId && !this.props.imageSrc;
-
    this.state = {
-      loading: renderIntoCanvas,
+      loading: this.shouldRenderToCanvas(),
    };
  }

+  shouldRenderToCanvas() {
+    return this.props.imageId && !this.props.imageSrc;
+  }
+
  componentDidMount() {
-    const renderIntoCanvas = this.props.imageId && !this.props.imageSrc;
-
-    if (renderIntoCanvas) {
-      const { imageId } = this.props;
-      const canvas = this.canvas.current;
-
-      cornerstone.loadAndCacheImage(imageId).then(
-        image => {
-          renderAsync(canvas, image).then(
-            () => {
-              this.setState({
-                loading: false,
-              });
-            },
-            error => {
-              // TODO: Set state?
-              throw new Error(error);
-            }
-          );
-        },
-        error => {
-          // TODO: Set state?
+    if (this.shouldRenderToCanvas()) {
+      cornerstone
+        .loadAndCacheImage(this.props.imageId)
+        .then(image => {
+          cornerstone.renderToCanvas(this.canvas.current, image);
+          this.setState({
+            loading: false,
+          });
+        })
+        .catch(error => {
+          this.setState({
+            loading: false,
+            error: true,
+          });
          throw new Error(error);
-        }
-      );
+        });
    }
  }

@@ -100,12 +74,10 @@ export default class ImageThumbnail extends PureComponent {
    const showStackLoadingProgressBar =
      this.props.stackPercentComplete !== undefined;

-    const renderIntoCanvas = this.props.imageId && !this.props.imageSrc;
-
    return (
      <div className="ImageThumbnail">
        <div className="image-thumbnail-canvas">
-          {renderIntoCanvas ? (
+          {this.shouldRenderToCanvas() ? (
            <canvas
              ref={this.canvas}
              width={this.props.width}
@@ -130,6 +102,9 @@ export default class ImageThumbnail extends PureComponent {
            />
          </div>
        )}
+        {this.state.loading && (
+          <div className="image-thumbnail-loading-indicator"></div>
+        )}
      </div>
    );
  }
@@ -26,6 +26,36 @@
  -webkit-background-clip: padding
  background-clip: padding-box

+  // Thumbnail Loading Indicator
+
+  .image-thumbnail-loading-indicator
+    position: absolute
+    left: 50%
+    top: 50%
+    margin: -22px 0 0 -22px
+    display: block
+    width: 44px
+    height: 44px
+
+    &:after
+      content: " "
+      display: block
+      width: 32px
+      height: 32px
+      margin: 1px
+      border-radius: 50%
+      border: 5px solid var(--ui-border-color-dark)
+      border-color: var(--ui-border-color-dark) transparent var(--ui-border-color-dark) transparent
+      animation: image-thumbnail-loading-indicator 1.2s linear infinite
+
+    @keyframes image-thumbnail-loading-indicator
+      0%
+        transform: rotate(0deg)
+      100%
+        transform: rotate(360deg)
+
+  // The End...
+
 .image-thumbnail-canvas
  height: 100%
  overflow: hidden
@@ -36,7 +66,6 @@
    -webkit-user-drag: none
    pointer-events: none

-
 .thumbnailLoadingIndicator
  display: none
  pointer-events: none
@@ -25,7 +25,7 @@ class StudyBrowser extends Component {
        if (this.props.supportsDragAndDrop) {
          return (
            <ThumbnailEntryDragSource
-              key={`${studyIndex}_${thumbIndex}`}
+              key={thumb.displaySetInstanceUid}
              {...study}
              {...thumb}
              id={`${studyIndex}_${thumbIndex}`}
@@ -37,7 +37,7 @@ class StudyBrowser extends Component {
          return (
            <div className="ThumbnailEntryContainer">
              <ThumbnailEntry
-                key={`${studyIndex}_${thumbIndex}`}
+                key={thumb.displaySetInstanceUid}
                {...study}
                {...thumb}
                id={`${studyIndex}_${thumbIndex}`}
@@ -38,7 +38,6 @@ class ThumbnailEntry extends Component {
    let className = classnames('ThumbnailEntry noselect', {
      active: this.props.active,
    });
-    const infoOnly = false;

    let contents = null;
    if (this.props.imageSrc || this.props.imageId) {
@@ -54,8 +53,10 @@ class ThumbnailEntry extends Component {
      );
    } else if (this.props.altImageText) {
      contents = (
-        <div className={'alt-image-text p-x-1'}>
-          <h1>{this.props.altImageText}</h1>
+        <div className="p-x-1">
+          <div className="alt-image-text">
+            <h1>{this.props.altImageText}</h1>
+          </div>
        </div>
      );
    }
@@ -69,23 +70,23 @@ class ThumbnailEntry extends Component {
      >
        {contents}
        <div
-          className={infoOnly ? 'series-details info-only' : 'series-details'}
+          className="series-details"
        >
          <div className="series-description">
            {this.props.seriesDescription}
          </div>
          <div className="series-information">
-            <div className="item item-series clearfix">
+            <div className="item item-series">
              <div className="icon">S:</div>
              <div className="value">{this.props.seriesNumber}</div>
            </div>
            {hasInstanceNumber && (
-              <div className="item item-series clearfix">
+              <div className="item item-series">
                <div className="icon">I:</div>
                <div className="value">{this.props.instanceNumber}</div>
              </div>
            )}
-            <div className="item item-frames clearfix">
+            <div className="item item-frames">
              <div className="icon">
                <div />
              </div>
@@ -31,8 +31,6 @@
      color: var(--text-primary-color);

  .series-details
-    display: flex;
-    flex-direction: row;
    color: var(--text-primary-color);
    font-size: 14px
    line-height: 1.3em
@@ -44,9 +42,6 @@
    position: relative
    word-wrap: break-word

-    .series-description
-        flex-grow: 1
-
    &.info-only
      .series-description
        display: none
@@ -67,36 +62,33 @@
            float: none
            line-height: 25px

-          .value
-            margin-left: 0
-            width: auto

  .series-information
-    padding-right: 4px
-    max-width: 50px
+    display: flex
+    flex-direction: row
+    align-items: center
+
+    .item
+      flex: 1
+      text-align: center

    .item-frames .icon
      height: 18px

    .value
      color: var(--text-secondary-color);
-      display: inline-block
-      float: right
+      display: inline
      font-size: 12px
      margin-left: 4px
-      overflow: hidden
      text-overflow: ellipsis
      white-space: nowrap
-      width: calc(100% - 15px)

    .icon
      color: var(--active-color);
-      display: inline-block
-      float: left
+      display: inline
      font-size: 10px
      font-weight: 900
      text-align: right
-      width: 11px

      div
        background-color: var(--series-count-background-color);
@@ -2,6 +2,7 @@
  margin: 0;
  width: 100%;
  -webkit-appearance: none;
+  background-color: transparent;
 }

 .range:focus {
@@ -11,7 +11,7 @@ class Range extends React.Component {

  handleChange = event => {
    this.setState({ value: event.target.value });
-    if (this.props.onChange) this.props.onChange();
+    if (this.props.onChange) this.props.onChange(event);
  };

  render() {
@@ -21,6 +21,7 @@ class Range extends React.Component {
        value={this.state.value}
        min={this.props.min}
        max={this.props.max}
+        step={this.props.step || 1}
        onChange={this.handleChange}
        id={this.props.id}
        className="range"
@@ -34,10 +34,6 @@
 }

 .select-ohif:focus {
-  border-color: #aaa;
-  box-shadow: 0 0 1px 3px rgba(59, 153, 252, 0.7);
-  box-shadow: 0 0 0 3px -moz-mac-focusring;
-  color: #222;
  outline: none;
 }

@@ -11,8 +11,9 @@ class Select extends Component {
  }

  handleChange = event => {
-    this.setState({ value: event.target.value });
-    if (this.props.onChange) this.props.onChange();
+    const value = event.target.value;
+    this.setState({ value });
+    if (this.props.onChange) this.props.onChange(value);
  };

  render() {
@@ -1,4 +1,5 @@
 import {
+  Checkbox,
  CineDialog,
  ExampleDropTarget,
  LayoutButton,
@@ -25,7 +26,7 @@ import {
 import { ICONS, Icon } from './elements';

 // Alias this for now as not all dependents are using strict versioning
-import { DropdownMenu as Dropdown } from './elements/form';
+import { DropdownMenu as Dropdown, Range, Select } from './elements/form';
 import ExpandableToolMenu from './viewer/ExpandableToolMenu.js';
 import LayoutManager from './LayoutChooser/LayoutManager.js';
 import LayoutPanelDropTarget from './LayoutChooser/LayoutPanelDropTarget.js';
@@ -38,6 +39,7 @@ import ViewerbaseDragDropContext from './utils/viewerbaseDragDropContext.js';
 export {
  ICONS,
  //
+  Checkbox,
  CineDialog,
  Dropdown,
  ExpandableToolMenu,
@@ -53,8 +55,10 @@ export {
  OverlayTrigger,
  PlayClipButton,
  QuickSwitch,
+  Range,
  RoundedButtonGroup,
  ScrollableArea,
+  Select,
  SelectTree,
  SimpleDialog,
  StudyBrowser,
@@ -10,10 +10,11 @@ const isTouchDevice = !!('ontouchstart' in window || navigator.maxTouchPoints);
 //
 // http://react-dnd.github.io/react-dnd/docs/api/drag-drop-context
 export default function viewerbaseDragDropContext(DecoratedClass) {
-  const backend = isTouchDevice ? TouchBackend({ enableMouseEvents: true }) : HTML5Backend;
+  const backend = isTouchDevice ? TouchBackend : HTML5Backend;
+  const opts = isTouchDevice ? { enableMouseEvents: true } : {};

  return (props) => (
-    <DndProvider backend={backend}>
+    <DndProvider backend={backend} opts={opts}>
      <DecoratedClass {...props}/>
    </DndProvider>
  );
@@ -108,16 +108,8 @@ class ExpandableToolMenu extends React.Component {
  };

  render() {
-    return (
-      <OverlayTrigger
-        key="menu-button"
-        trigger="click"
-        placement="bottom"
-        rootClose={true}
-        handleHide={this.onOverlayHide}
-        onClick={this.onExpandableToolClick}
-        overlay={this.toolbarMenuOverlay()}
-      >
+    const getToolBarButtonComponent = () => {
+      return (
        <ToolbarButton
          key="menu-button"
          type="tool"
@@ -128,6 +120,22 @@ class ExpandableToolMenu extends React.Component {
          isExpandable={true}
          isExpanded={this.state.isExpanded}
        />
+      );
+    };
+
+    const toolbarComponent = getToolBarButtonComponent();
+
+    return (
+      <OverlayTrigger
+        key="menu-button"
+        trigger="click"
+        placement="bottom"
+        rootClose={true}
+        handleHide={this.onOverlayHide}
+        onClick={this.onExpandableToolClick}
+        overlay={this.toolbarMenuOverlay()}
+      >
+        {toolbarComponent}
      </OverlayTrigger>
    );
  }
@@ -114,6 +114,8 @@ module.exports = (env, argv) => {
      hot: true,
      open: true,
      port: 3000,
+      host: '0.0.0.0',
+      public: 'http://localhost:' + 3000,
      historyApiFallback: {
        disableDotRule: true,
      },
@@ -3,6 +3,111 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.

+## [1.4.5](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.4.4...@ohif/viewer@1.4.5) (2019-10-09)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [1.4.4](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.4.3...@ohif/viewer@1.4.4) (2019-10-07)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [1.4.3](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.4.2...@ohif/viewer@1.4.3) (2019-10-04)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [1.4.2](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.4.1...@ohif/viewer@1.4.2) (2019-10-04)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [1.4.1](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.4.0...@ohif/viewer@1.4.1) (2019-10-03)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+# [1.4.0](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.3.3...@ohif/viewer@1.4.0) (2019-10-03)
+
+
+### Features
+
+* Use QIDO + WADO to load series metadata individually rather than the entire study metadata at once ([#953](https://github.com/OHIF/Viewers/issues/953)) ([9e10c2b](https://github.com/OHIF/Viewers/commit/9e10c2b))
+
+
+
+
+
+## [1.3.3](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.3.2...@ohif/viewer@1.3.3) (2019-10-02)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [1.3.2](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.3.1...@ohif/viewer@1.3.2) (2019-10-01)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [1.3.1](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.3.0...@ohif/viewer@1.3.1) (2019-10-01)
+
+
+### Bug Fixes
+
+* Exit MPR mode if Layout is changed ([#984](https://github.com/OHIF/Viewers/issues/984)) ([674ca9f](https://github.com/OHIF/Viewers/commit/674ca9f))
+
+
+
+
+
+# [1.3.0](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.2.8...@ohif/viewer@1.3.0) (2019-10-01)
+
+
+### Features
+
+* 🎸 MPR UI improvements. Added MinIP, AvgIP, slab thickness slider and mode toggle ([#947](https://github.com/OHIF/Viewers/issues/947)) ([c79c0c3](https://github.com/OHIF/Viewers/commit/c79c0c3))
+
+
+
+
+
+## [1.2.8](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.2.7...@ohif/viewer@1.2.8) (2019-10-01)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [1.2.7](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.2.6...@ohif/viewer@1.2.7) (2019-10-01)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
 ## [1.2.6](https://github.com/OHIF/Viewers/compare/@ohif/viewer@1.2.5...@ohif/viewer@1.2.6) (2019-09-27)

 **Note:** Version bump only for package @ohif/viewer
@@ -0,0 +1,407 @@
+describe('OHIF Cornerstone Toolbar', () => {
+  
+  before(() => {
+      cy.openStudy("MISTER^MR");
+      cy.waitDicomImage();
+    });
+
+    beforeEach(() => {
+      //Creating aliases for Cornerstone tools buttons
+      cy.get('.toolbar-button:nth-child(2)').as('stackScrollBtn');
+      cy.get('.toolbar-button:nth-child(3)').as('zoomBtn');
+      cy.get('.toolbar-button:nth-child(4)').as('levelsBtn');
+      cy.get('.toolbar-button:nth-child(5)').as('panBtn');
+      cy.get('.toolbar-button:nth-child(6)').as('lengthBtn');
+      cy.get('.toolbar-button:nth-child(7)').as('annotateBtn');
+      cy.get('.toolbar-button:nth-child(8)').as('angleBtn');
+      cy.get('.toolbar-button:nth-child(9)').as('resetBtn');
+      cy.get('.toolbar-button:nth-child(10)').as('cineBtn');
+      cy.get('.expandableToolMenu').as('moreBtn');
+      cy.get('.PluginSwitch > .toolbar-button').as('twodmprBtn');
+      cy.get('.btn-group > .toolbar-button').as('layoutBtn');
+      cy.get('.pull-right > .RoundedButtonGroup > .roundedButtonWrapper > .roundedButton').as('measurementsBtn');
+      cy.get('.viewport-element').as('viewport');
+      cy.get('section.sidepanel.from-right').as('measurementsPanel')
+      //Following best practices, reset should be done before each test
+      cy.resetViewport();
+    })
+
+
+    it('checks if all primary buttons are being displayed', () => {
+      cy.get('@stackScrollBtn').should('be.visible').contains('Stack Scroll');
+      cy.get('@zoomBtn').should('be.visible').contains('Zoom');
+      cy.get('@levelsBtn').should('be.visible').contains('Levels');
+      cy.get('@panBtn').should('be.visible').contains('Pan');
+      cy.get('@lengthBtn').should('be.visible').contains('Length');
+      cy.get('@annotateBtn').should('be.visible').contains('Annotate');
+      cy.get('@angleBtn').should('be.visible').contains('Angle');
+      cy.get('@resetBtn').should('be.visible').contains('Reset');
+      cy.get('@cineBtn').should('be.visible').contains('CINE');
+      cy.get('@moreBtn').should('be.visible').contains('More');
+      cy.get('@twodmprBtn').should('be.visible').contains('2D MPR');
+      cy.get('@layoutBtn').should('be.visible').contains('Layout');
+    });
+
+
+    it('checks if Stack Scroll tool will navigate across all series in the viewport', () => {
+      //Click on button and vefiry if icon is active on toolbar
+      cy.get('@stackScrollBtn')
+        .click()
+        .then(($stackScrollBtn) =>{
+          cy.wrap($stackScrollBtn)
+            .should('have.class', 'active')
+        })
+
+      //drags the mouse inside the viewport to be able to interact with series
+      cy.get('@viewport')
+        .trigger('mousedown', 'top', { which: 1 })
+        .trigger('mousemove', 'center', { which: 1 })
+        .trigger('mouseup');
+
+      const overlaySeriesInformation = 'div.ViewportOverlay > div.bottom-left.overlay-element > div';
+      const expectedText = 'Ser: 1Img: 14 14/26256 x 256Loc: 0.00 mm Thick: 5.00 mm';   
+      cy.get(overlaySeriesInformation)
+        .should('have.text', expectedText);
+    });
+
+
+    it('checks if Zoom tool will zoom in/out an image in the viewport', () => {
+      //Click on button and vefiry if icon is active on toolbar
+      cy.get('@zoomBtn')
+        .click()
+        .then(($zoomBtn) =>{
+          cy.wrap($zoomBtn)
+            .should('have.class', 'active')
+        })
+
+      //drags the mouse inside the viewport to be able to interact with series
+      cy.get('@viewport')
+        .trigger('mousedown', 'top', { which: 1 })
+        .trigger('mousemove', 'center', { which: 1 })
+        .trigger('mouseup');
+
+      const overlaySeriesInformation = 'div.ViewportOverlay > div.bottom-right.overlay-element > div';
+      const expectedText = 'Zoom: 884%W: 820 L: 410Lossless / Uncompressed';   
+      cy.get(overlaySeriesInformation)
+        .should('have.text', expectedText);
+    });
+
+
+    it('checks if Levels tool will change the contrast and brightness of an image in the viewport', () => {
+      //Click on button and vefiry if icon is active on toolbar
+      cy.get('@levelsBtn')
+        .click()
+        .then(($levelsBtn) =>{
+          cy.wrap($levelsBtn)
+            .should('have.class', 'active')
+        })
+
+      //drags the mouse inside the viewport to be able to interact with series
+      cy.get('@viewport')
+        .trigger('mousedown', 'top', { which: 1 })
+        .trigger('mousemove', 'center', { which: 1 })
+        .trigger('mouseup')
+        .trigger('mousedown', 'center', { which: 1 })
+        .trigger('mousemove', 'left', { which: 1 })
+        .trigger('mouseup');
+
+      const overlaySeriesInformation = 'div.ViewportOverlay > div.bottom-right.overlay-element > div';
+      const expectedText = 'Zoom: 211%W: 544 L: 626Lossless / Uncompressed';
+      cy.get(overlaySeriesInformation)
+        .should('have.text', expectedText);
+    });
+    
+
+    it('checks if Pan tool will move the image inside the viewport', () => {
+      //Click on button and vefiry if icon is active on toolbar
+      cy.get('@panBtn')
+        .click()
+        .then(($panBtn) =>{
+          cy.wrap($panBtn)
+            .should('have.class', 'active')
+        })
+      
+      //Get image position from cornerstone and check if y axis was modified
+      let cornerstone;
+      let currentPan;
+
+      cy.window()
+        .its('cornerstone')
+        .then((c) => {
+          cornerstone = c;
+          currentPan = () => cornerstone.getEnabledElements()[0].viewport.translation;
+        });
+
+      cy.get('@viewport')
+        .trigger('mousedown', 'center', { which: 1 })
+        .trigger('mousemove', 'bottom', { which: 1 })
+        .trigger('mouseup', 'bottom')
+        .then(() => {
+          expect(currentPan().y > 0).to.eq(true);
+        });
+    });
+
+
+    it('checks if Length annotation can be added on viewport and on measurements panel', () => {   
+      //Click on button and vefiry if icon is active on toolbar
+      cy.get('@lengthBtn')
+        .click()
+        .then(($lengthbtn) =>{
+          cy.wrap($lengthbtn)
+            .should('have.class', 'active')
+        })
+
+      //Add annotation on the viewport
+      const firstClick = [150, 100];
+      const secondClick = [130, 170];
+      cy.addLine('.cornerstone-canvas', firstClick, secondClick)
+      
+      //Verify if measurement annotation was added into the measurements panel
+      cy.get('@measurementsBtn')
+        .click()
+        .then($measurementsBtn => {
+          cy.get('@measurementsPanel')
+            .should('be.visible');
+            
+          cy.get('.measurementItem')
+            .its('length')
+            .should('be.eq', 1);
+
+          cy.wrap($measurementsBtn)
+          .click();
+        })
+    });
+
+
+    it('checks if Angle annotation can be added on viewport and on measurements panel', () => {   
+      //Click on button and vefiry if icon is active on toolbar
+      cy.get('@angleBtn')
+        .click()
+        .then(($angleBtn) =>{
+          cy.wrap($angleBtn)
+            .should('have.class', 'active')
+        })
+
+      //Add annotation on the viewport
+      const initPos = [180, 390];
+      const midPos = [300, 410];
+      const finalPos = [180, 450];
+      cy.addAngle('.cornerstone-canvas', initPos, midPos, finalPos);
+
+      //Verify if measurement annotation was added into the measurements panel
+      cy.get('@measurementsBtn')
+        .click()
+        .then($measurementsBtn => {
+          cy.get('@measurementsPanel')
+            .should('be.visible');
+            
+          cy.get('.measurementItem')
+            .its('length')
+            .should('be.eq', 2);
+
+          cy.wrap($measurementsBtn)
+          .click();
+        })
+    });
+
+
+    it('checks if Reset tool will reset all changes made on the image', () => {
+      //Make some changes by zooming in and rotating the image
+      cy.imageZoomIn();
+      cy.imageContrast();
+
+      //Click on reset button
+      cy.get('@resetBtn').click()
+   
+      const overlaySeriesInformation = 'div.ViewportOverlay > div.bottom-right.overlay-element > div';
+      const expectedText = 'Zoom: 211%W: 820 L: 410Lossless / Uncompressed';
+      cy.get(overlaySeriesInformation)
+        .should('have.text', expectedText);
+    });
+    
+    
+    it('checks if CINE tool will prompt a modal with working controls', () => {
+      //Click on button
+      cy.get('@cineBtn')
+        .click();
+        //Vefiry if cine control overlay is being displayed
+        cy.get('.cine-controls').as('cineControls')
+          .should('be.visible');
+
+        //Test PLAY button
+        cy.get('[title="Play / Stop"]')
+          .click()
+          .wait(100)
+          .click();
+        
+        const overlaySeriesInformation = 'div.ViewportOverlay > div.bottom-left.overlay-element > div';
+        let expectedText = 'Img: 1 1/26';  
+        cy.get(overlaySeriesInformation)
+          .should('not.have.text', expectedText);
+
+        //Test SKIP TO FIRST IMAGE button
+        cy.get('[title="Skip to first Image"]')
+          .click()
+        cy.get(overlaySeriesInformation)
+          .should('contain.text', expectedText);
+
+        //Test NEXT IMAGE button
+        cy.get('[title="Next Image"]') //Title is wrong and was reported on bug #995: https://github.com/OHIF/Viewers/issues/995
+          .click()
+          expectedText = 'Img: 2 2/26'; 
+        cy.get(overlaySeriesInformation)
+          .should('contain.text', expectedText);  
+
+        //Test SKIP TO LAST IMAGE button
+        cy.get('[title="Skip to last Image"]') //Title is wrong and was reported on bug #995: https://github.com/OHIF/Viewers/issues/995
+          .click()
+        expectedText = 'Img: 27 26/26';  
+        cy.get(overlaySeriesInformation)
+          .should('contain.text', expectedText);
+
+        //Test PREVIOUS IMAGE button
+        cy.get('[title="Previous Image"]')
+          .click()
+        expectedText = 'Img: 26 25/26'; 
+        cy.get(overlaySeriesInformation)
+          .should('contain.text', expectedText);  
+
+        //Click on Cine button
+        cy.get('@cineBtn')
+        .click();
+        //Vefiry if cine control overlay is hidden
+        cy.get('@cineControls')
+          .should('not.be.visible'); 
+    });
+    
+
+    it('checks if More button will prompt a modal with secondary tools', () => {
+      cy.get('@moreBtn')
+        .click();
+      //Verify if overlay is displayed
+      cy.get('.tooltip-toolbar-overlay').as('toolbarOverlay')
+        .should('be.visible');
+
+      let iconName;
+        //Click on one of the secondary tools from the overlay
+      cy.get('.tooltip-inner > :nth-child(1)')
+        .click()
+        .then(($magnifyBtn) =>{
+          cy.wrap($magnifyBtn)
+            .should('have.class', 'active')
+            .find('svg').then(($icon)=>{
+                iconName = $icon.text();
+            })
+        })
+
+        //Check if More button is active and if it has same icon as the secondary tool selected
+        cy.get('@moreBtn')
+          .click()
+          .then(($moreBtn) =>{
+          cy.wrap($moreBtn)
+            .should('have.class', 'active')
+            .contains(iconName);
+        })
+
+      //Verify if overlay is hidden
+      cy.get('@toolbarOverlay')
+        .should('not.be.visible');
+    });
+
+
+    it('checks if Layout tool will multiply the number of viewports displayed', () => {
+      //Click on Layout button and verify if overlay is displayed
+      cy.get('@layoutBtn')
+        .click()
+        .then(() => {
+          cy.get('.layoutChooser').as('layoutChooser')
+            .should('be.visible')
+            .find('td')
+            .its('length')
+            .should('be.eq', 9);
+        })
+      
+        //verify if layout has changed to 2 viewports 
+        cy.get('tbody > :nth-child(1) > :nth-child(2)').click();
+        cy.get('.viewport-container').then(($viewport) =>{
+          cy.wrap($viewport)
+            .its('length')
+            .should('be.eq', 2);
+        })
+          
+        cy.get('@layoutBtn').click();
+        cy.get('tbody > :nth-child(2) > :nth-child(1)').click();
+        cy.get('.viewport-container').then(($viewport) =>{
+          cy.wrap($viewport)
+            .its('length')
+            .should('be.eq', 2);
+        })
+
+        //verify if layout has changed to 3 viewports 
+        cy.get('@layoutBtn').click();
+        cy.get('tbody > :nth-child(1) > :nth-child(3)').click();
+        cy.get('.viewport-container').then(($viewport) =>{
+          cy.wait(1000);
+          cy.wrap($viewport)
+            .its('length')
+            .should('be.eq', 3);
+        })
+          
+        cy.get('@layoutBtn').click();
+        cy.get('tbody > :nth-child(3) > :nth-child(1)').click();
+        cy.get('.viewport-container').then(($viewport) =>{
+          cy.wrap($viewport)
+            .its('length')
+            .should('be.eq', 3);
+        })
+
+        //verify if layout has changed to 4 viewports 
+        cy.get('@layoutBtn').click();
+        cy.get('tbody > :nth-child(2) > :nth-child(2)').click();
+        cy.get('.viewport-container').then(($viewport) =>{
+          cy.wrap($viewport)
+            .its('length')
+            .should('be.eq', 4);
+        })
+
+        //verify if layout has changed to 6 viewports 
+        cy.get('@layoutBtn').click();
+        cy.get('tbody > :nth-child(2) > :nth-child(3)').click();
+        cy.get('.viewport-container').then(($viewport) =>{
+          cy.wrap($viewport)
+            .its('length')
+            .should('be.eq', 6);
+        })
+
+        cy.get('@layoutBtn').click();
+        cy.get('tbody > :nth-child(3) > :nth-child(2)').click();
+        cy.get('.viewport-container').then(($viewport) =>{
+          cy.wrap($viewport)
+            .its('length')
+            .should('be.eq', 6);
+        })
+
+        //verify if layout has changed to 9 viewports 
+        cy.get('@layoutBtn').click();
+        cy.get('tbody > :nth-child(3) > :nth-child(3)').click();
+        cy.get('.viewport-container').then(($viewport) =>{
+          cy.wrap($viewport)
+            .its('length')
+            .should('be.eq', 9);
+        })
+
+        //Commented this to avoid throwing an wrong exception at the end of "Layout button" test
+        //this commented section should be uncommented once issue #999 is fixed. (https://github.com/OHIF/Viewers/issues/999)
+       
+        //verify if layout has changed to 1 viewport 
+        //  cy.get('@layoutBtn').click();
+        //  cy.get('tbody > :nth-child(1) > :nth-child(1)').click();
+        //  cy.get('.viewport-container').then(($viewport) =>{
+        //    cy.wrap($viewport)
+        //      .its('length')
+        //      .should('be.eq', 1);
+        //  })
+
+    });
+
+  });
@@ -1,5 +1,4 @@
-/*
-TODO: Temporarily commented out because it is failing on CI due to timing issues
+
 describe('OHIF Study Viewer Page', () => {
  
  before(() => {
@@ -41,10 +40,8 @@ describe('OHIF Study Viewer Page', () => {
      cy.get(measurementsButton).click();
      cy.get(rightPanel).should('be.visible');
      
-      
      cy.get(measurementsButton).click();
      cy.get(rightPanel).should('not.be.enabled');
    });

  });
-*/
@@ -1,4 +1,6 @@
 import { DragSimulator } from "../helpers/DragSimulator.js";
+import { doesNotReject } from "assert";
+import { disconnect } from "cluster";

 // ***********************************************
 // This example commands.js shows you how to
@@ -30,12 +32,114 @@ Cypress.Commands.add('openStudy', (patientName) => {
    cy.visit('/');
    cy.get('#patientName')
      .type(patientName);
-    cy.get('.studylistStudy > .patientName')
-      .contains(patientName)
-      .click();
+
+    cy.get('.studylistStudy > .patientName').as('patientResult')
+      .then({ timeout: 5000 }, ($patientResult) => {
+        cy.contains(patientName)
+        .click();
+      })
  }
 );

 Cypress.Commands.add('drag', {prevSubject: 'element',},
  (...args) => DragSimulator.simulate(...args)
 );
+
+/**
+ * Command to perform two clicks into two different positions. Each position must be [x, y].
+ * The positions are considering the element as reference, therefore, top-left of the element will be (0, 0).
+ *
+ * @param {*} viewport - Selector for viewport we would like to interact with
+ * @param {number[]} firstClick - Click position [x, y]
+ * @param {number[]} secondClick - Click position [x, y]
+ */
+Cypress.Commands.add('addLine', (viewport, firstClick, secondClick) =>  {
+
+  cy.get(viewport).then(($viewport) => {
+    const [ x1, y1 ] = firstClick;
+    const [ x2, y2 ] = secondClick;
+
+    cy.wrap($viewport)
+      .click(x1, y1, {force: true})
+      .trigger('mousemove', {clientX:x2, clientY:y2})
+      .click(x2, y2, {force: true})
+  });
+});
+
+
+/**
+ * Command to perform three clicks into three different positions. Each position must be [x, y].
+ * The positions are considering the element as reference, therefore, top-left of the element will be (0, 0).
+ *
+ * @param {*} viewport - Selector for viewport we would like to interact with
+ * @param {number[]} firstClick - Click position [x, y]
+ * @param {number[]} secondClick - Click position [x, y]
+ * @param {number[]} thirdClick - Click position [x, y]
+ */
+Cypress.Commands.add('addAngle', (viewport, firstClick, secondClick, thirdClick) =>  {
+
+  cy.get(viewport).then(($viewport) => {
+    const [ x1, y1 ] = firstClick;
+    const [ x2, y2 ] = secondClick;
+    const [ x3, y3 ] = thirdClick;
+
+    cy.wrap($viewport)
+      .click(x1, y1, {force: true})
+      .trigger('mousemove', {clientX:x2, clientY:y2})
+      .click(x2, y2, {force: true})
+      .trigger('mousemove', {clientX:x3, clientY:y3})
+      .click(x3, y3, {force: true})
+  });
+});
+
+
+//Command to wait DICOM image to load into the viewport
+Cypress.Commands.add('waitDicomImage', (timeout = 10000) => {
+  cy.window()
+    .its('cornerstone')
+    .then($cornerstone => {
+      return new Cypress.Promise(resolve => {
+            const onEvent = (renderedEvt) => {
+            const element = renderedEvt.detail.element;
+
+            element.removeEventListener('cornerstoneimagerendered', onEvent);
+            $cornerstone.events.removeEventListener('cornerstoneimagerendered', onEvent);
+              resolve();
+          }
+          const onEnabled = (enabledEvt) => {
+              const element = enabledEvt.detail.element;
+              
+                element.addEventListener('cornerstoneimagerendered', onEvent);
+          }
+          $cornerstone.events.addEventListener('cornerstoneelementenabled', onEnabled);
+    });
+  });
+
+});
+
+
+//Command to reset the viewport changes throught the cornerstone method
+Cypress.Commands.add('resetViewport', () => {
+  cy.get('@resetBtn').click()
+});
+
+
+Cypress.Commands.add('imageZoomIn', () => {
+  cy.get('@zoomBtn').click();
+
+  //drags the mouse inside the viewport to be able to interact with series
+  cy.get('@viewport')
+  .trigger('mousedown', 'top', { which: 1 })
+  .trigger('mousemove', 'center', { which: 1 })
+  .trigger('mouseup');
+});
+
+Cypress.Commands.add('imageContrast', () => {
+  cy.get('@levelsBtn').click();
+
+  //drags the mouse inside the viewport to be able to interact with series
+  cy.get('@viewport')
+  .trigger('mousedown', 'center', { which: 1 })
+  .trigger('mousemove', 'top', { which: 1 })
+  .trigger('mouseup');
+});
@@ -1,6 +1,6 @@
 {
  "name": "@ohif/viewer",
-  "version": "1.2.6",
+  "version": "1.4.5",
  "description": "OHIF Viewer",
  "author": "OHIF Contributors",
  "license": "MIT",
@@ -46,14 +46,14 @@
  },
  "dependencies": {
    "@babel/runtime": "^7.5.5",
-    "@ohif/core": "^1.0.1",
+    "@ohif/core": "^1.2.0",
    "@ohif/extension-cornerstone": "^2.0.0",
    "@ohif/extension-dicom-html": "^1.0.0",
    "@ohif/extension-dicom-microscopy": "^0.50.6",
    "@ohif/extension-dicom-pdf": "^1.0.0",
-    "@ohif/extension-vtk": "^0.50.22",
-    "@ohif/i18n": "^0.50.4",
-    "@ohif/ui": "^0.51.2",
+    "@ohif/extension-vtk": "^0.52.2",
+    "@ohif/i18n": "^0.50.5",
+    "@ohif/ui": "^0.53.1",
    "@tanem/react-nprogress": "^1.1.25",
    "classnames": "^2.2.6",
    "core-js": "^3.2.1",
@@ -13,6 +13,7 @@ window.config = {
        qidoSupportsIncludeField: true,
        imageRendering: 'wadors',
        thumbnailRendering: 'wadors',
+        enableStudyLazyLoad: true,
      },
    ],
  },
@@ -12,6 +12,7 @@ window.config = {
        qidoSupportsIncludeField: true,
        imageRendering: 'wadors',
        thumbnailRendering: 'wadors',
+        enableStudyLazyLoad: true,
      },
    ],
  },
@@ -11,6 +11,7 @@ window.config = {
        qidoSupportsIncludeField: true,
        imageRendering: 'wadors',
        thumbnailRendering: 'wadors',
+        enableStudyLazyLoad: true,
      },
    ],
  },
@@ -13,15 +13,23 @@ const mapStateToProps = state => {
 const mapDispatchToProps = dispatch => {
  return {
    // TODO: Change if layout switched becomes more complex
-    onChange: selectedCell => {
+    onChange: (selectedCell, currentLayout) => {
      let viewports = [];
      const rows = selectedCell.row + 1;
      const columns = selectedCell.col + 1;
      const numViewports = rows * columns;
      for (let i = 0; i < numViewports; i++) {
+        // Hacky way to allow users to exit MPR "mode"
+        const viewport = currentLayout.viewports[i];
+        let plugin = viewport && viewport.plugin;
+        if (viewport && viewport.vtk) {
+          plugin = 'cornerstone';
+        }
+
        viewports.push({
          height: `${100 / rows}%`,
          width: `${100 / columns}%`,
+          plugin,
        });
      }
      const layout = {
@@ -33,9 +41,19 @@ const mapDispatchToProps = dispatch => {
  };
 };

+const mergeProps = (propsFromState, propsFromDispatch) => {
+  const onChangeFromDispatch = propsFromDispatch.onChange;
+  const { currentLayout } = propsFromState;
+
+  return {
+    onChange: (selectedCell) => onChangeFromDispatch(selectedCell, currentLayout)
+  };
+}
+
 const ConnectedLayoutButton = connect(
  mapStateToProps,
-  mapDispatchToProps
+  mapDispatchToProps,
+  mergeProps
 )(LayoutButton);

 export default ConnectedLayoutButton;
@@ -229,6 +229,7 @@ function _getButtonComponents(toolbarButtons, activeButtons) {
  });
 }

+
 /**
 * A handy way for us to handle different button types. IE. firing commands for
 * buttons, or initiation built in behavior.
@@ -1,11 +1,11 @@
-import React, { Component } from "react";
-import { metadata, studies, utils } from "@ohif/core";
+import React, { Component } from 'react';
+import { metadata, studies, utils, log } from '@ohif/core';

-import ConnectedViewer from "./ConnectedViewer.js";
-import PropTypes from "prop-types";
-import { extensionManager } from "./../App.js";
+import ConnectedViewer from './ConnectedViewer.js';
+import PropTypes from 'prop-types';
+import { extensionManager } from './../App.js';

-const { OHIFStudyMetadata } = metadata;
+const { OHIFStudyMetadata, OHIFSeriesMetadata } = metadata;
 const { retrieveStudiesMetadata } = studies;
 const { studyMetadataManager, updateMetaDataManager } = utils;

@@ -13,65 +13,97 @@ class ViewerRetrieveStudyData extends Component {
  static propTypes = {
    studyInstanceUids: PropTypes.array.isRequired,
    seriesInstanceUids: PropTypes.array,
-    server: PropTypes.object
+    server: PropTypes.object,
  };

-  state = {
-    studies: null,
-    error: null
-  };
-
-  async componentDidMount() {
-    // TODO: Avoid using timepoints here
-    //const params = { studyInstanceUids, seriesInstanceUids, timepointId, timepointsFilter={} };
-    const { studyInstanceUids, seriesInstanceUids, server } = this.props;
+  constructor(props) {
+    super(props);
+    this.state = {
+      studies: null,
+      error: null,
+    };
+  }

+  async loadStudies() {
    try {
+      const { server, studyInstanceUids, seriesInstanceUids } = this.props;
      const studies = await retrieveStudiesMetadata(
        server,
        studyInstanceUids,
        seriesInstanceUids
      );
+      this.setStudies(studies);
+    } catch (e) {
+      this.setState({ error: true });
+      log.error(e);
+    }
+  }

-      // Render the viewer when the data is ready
-      // TODO: CLEAR THIS SOMEWHERE ELSE
-      studyMetadataManager.purge();
-
+  setStudies(givenStudies) {
+    if (Array.isArray(givenStudies) && givenStudies.length > 0) {
+      const sopClassHandlerModules =
+        extensionManager.modules['sopClassHandlerModule'];
      // Map studies to new format, update metadata manager?
-      const updatedStudies = studies.map(study => {
+      const studies = givenStudies.map(study => {
        const studyMetadata = new OHIFStudyMetadata(
          study,
          study.studyInstanceUid
        );
-        const sopClassHandlerModules =
-          extensionManager.modules["sopClassHandlerModule"];
-
-        study.displaySets =
-          study.displaySets ||
-          studyMetadata.createDisplaySets(sopClassHandlerModules);
+        if (!study.displaySets) {
+          study.displaySets = studyMetadata.createDisplaySets(
+            sopClassHandlerModules
+          );
+        }
        studyMetadata.setDisplaySets(study.displaySets);
-
        // Updates WADO-RS metaDataManager
        updateMetaDataManager(study);
-
        studyMetadataManager.add(studyMetadata);
-
+        // Attempt to load remaning series if any
+        this._attemptToLoadRemainingSeries(studyMetadata);
        return study;
      });
-
-      this.setState({
-        studies: updatedStudies
-      });
-    } catch (err) {
-      this.setState({
-        error: true
-      });
-
-      // TODO: Handle gracefully instead of throwing?
-      throw new Error(err);
+      this.setState({ studies });
    }
  }

+  _addSeriesToStudy(studyMetadata, series) {
+    const sopClassHandlerModules =
+      extensionManager.modules['sopClassHandlerModule'];
+    const study = studyMetadata.getData();
+    const seriesMetadata = new OHIFSeriesMetadata(series, study);
+    studyMetadata.addSeries(seriesMetadata);
+    studyMetadata.createAndAddDisplaySetsForSeries(
+      sopClassHandlerModules,
+      seriesMetadata
+    );
+    study.displaySets = studyMetadata.getDisplaySets();
+    updateMetaDataManager(study, series.seriesInstanceUid);
+    this.setState(function(state) {
+      return { studies: state.studies.slice() };
+    });
+  }
+
+  _attemptToLoadRemainingSeries(studyMetadata) {
+    const { seriesLoader } = studyMetadata.getData();
+    if (!seriesLoader) {
+      return;
+    }
+    while (seriesLoader.hasNext()) {
+      seriesLoader
+        .next()
+        .then(
+          series => void this._addSeriesToStudy(studyMetadata, series),
+          error => void log.error(error)
+        );
+    }
+  }
+
+  componentDidMount() {
+    // TODO: CLEAR THIS SOMEWHERE ELSE
+    studyMetadataManager.purge();
+    this.loadStudies();
+  }
+
  render() {
    if (this.state.error) {
      return <div>Error: {JSON.stringify(this.state.error)}</div>;
@@ -2272,6 +2272,16 @@
    once "^1.4.0"
    universal-user-agent "^4.0.0"

+"@ohif/extension-cornerstone@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@ohif/extension-cornerstone/-/extension-cornerstone-2.0.0.tgz#b4ee3b594212502192cdd311a100354857280548"
+  integrity sha512-hvJ3t2GRcu906NiYpUWaJIB9ja/M/MKEYLy19t4XBFpqf4VqoezR2KJpZelmZjQscXGaDQeZgvr3DJO5Nva8Uw==
+  dependencies:
+    "@babel/runtime" "^7.5.5"
+    classnames "^2.2.6"
+    lodash.throttle "^4.1.1"
+    react-cornerstone-viewport "0.1.30"
+
 "@ohif/i18n@^0.2.3":
  version "0.2.5"
  resolved "https://registry.yarnpkg.com/@ohif/i18n/-/i18n-0.2.5.tgz#2b92a78109823ce0f50dd590201d980a5fd64974"
@@ -8273,6 +8283,11 @@ gl-matrix@3.0.0:
  resolved "https://registry.yarnpkg.com/gl-matrix/-/gl-matrix-3.0.0.tgz#888301ac7650e148c3865370e13ec66d08a8381f"
  integrity sha512-PD4mVH/C/Zs64kOozeFnKY8ybhgwxXXQYGWdB4h68krAHknWJgk9uKOn6z8YElh5//vs++90pb6csrTIDWnexA==

+gl-matrix@^3.1.0:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/gl-matrix/-/gl-matrix-3.1.0.tgz#f5b2de17d8fed95a79e5025b10cded0ab9ccbed0"
+  integrity sha512-526NA+3EA+ztAQi0IZpSWiM0fyQXIp7IbRvfJ4wS/TjjQD0uv0fVybXwwqqSOlq33UckivI0yMDlVtboWm3k7A==
+
 gl-preserve-state@^1.0.0:
  version "1.0.0"
  resolved "https://registry.yarnpkg.com/gl-preserve-state/-/gl-preserve-state-1.0.0.tgz#4ef710d62873f1470ed015c6546c37dacddd4198"
@@ -14954,12 +14969,13 @@ react-transition-group@^4.1.1:
    loose-envify "^1.4.0"
    prop-types "^15.6.2"

-react-vtkjs-viewport@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/react-vtkjs-viewport/-/react-vtkjs-viewport-0.1.0.tgz#a00b114b635ff95a82ae1227d70c248e4cafddf4"
-  integrity sha512-0gnRfntpV6ZBNvZOHzjHapFeJajO8nfkSvO5SNUu41bkyXxqYcJwZvb3EWbd04V1RnA0AnKRoR/KL+I09Os7gg==
+react-vtkjs-viewport@0.1.4:
+  version "0.1.4"
+  resolved "https://registry.yarnpkg.com/react-vtkjs-viewport/-/react-vtkjs-viewport-0.1.4.tgz#f5ecc7dd52ab065d54656f36851f49b058ba683f"
+  integrity sha512-07hVFJJ9LTy+Z9dgdPiPkaohVb013bgjNgH29MVafnjwH92YOXJzfFbf8/yzzVIZsYCETFf7rVw+oMGQJs5TAA==
  dependencies:
    date-fns "^2.2.1"
+    gl-matrix "^3.1.0"

 react-with-direction@1.3.0:
  version "1.3.0"
Author	SHA1	Message	Date
ohif-bot	5c5223fcf1	chore(release): publish [skip ci] - @ohif/extension-vtk@0.52.2 - @ohif/core@1.2.0 - @ohif/viewer@1.4.5	2019-10-09 11:27:27 +00:00
James Petts	8513ad9ef3	perf: 🎸 Update vtk viewport for faster image reconstruction (#1016 )	2019-10-09 13:13:13 +02:00
Emanuel Fiuza de Oliveira	66d8bc6d6f	fix: OHIF-1002 Study lazy load should be true by default (#1004 )	2019-10-07 16:31:47 -04:00
Jody Zeitler	0064a4b1cd	feat: Allow a server requestOptions.auth to be a function that returns the Authorization header. (#928 )	2019-10-06 21:07:44 -04:00
ohif-bot	74ce89b22b	chore(release): publish [skip ci] - @ohif/viewer@1.4.4	2019-10-07 01:07:06 +00:00
Mirna Silva	c92975f555	test: Fix for test scripts that were failing in CI (#968 ) * Fix for test scripts that were failing in CI * Test cases for tools: Length and Angle * Test cases implemented: Scroll series, Levels, Pan, Reset, Zoom * Added test cases for tools: Cine, More, Layout, Invert, Rotate, FlipH, FlipV * Fixes made according to comments on PR review * Fixes for failing scenarios: Layout and Cine	2019-10-06 20:57:49 -04:00
ohif-bot	ce6c0533a0	chore(release): publish [skip ci] - @ohif/i18n@0.50.5 - @ohif/viewer@1.4.3	2019-10-04 16:55:28 +00:00
Rodrigo Antinarelli	4df624b8c4	fix: CineDialog buttons label (#998 ) * fix: CineDialog buttons label * Revert "fix: CineDialog buttons label" This reverts commit 48ea7a28e50b845c4939a8aaf2d95eba49d2c102. * fix: CineDialog buttons label	2019-10-04 12:46:39 -04:00
ohif-bot	e064fd353e	chore(release): publish [skip ci] - @ohif/extension-vtk@0.52.1 - @ohif/ui@0.53.1 - @ohif/viewer@1.4.2	2019-10-04 13:37:03 +00:00
Sanders DeNardi	458d310c78	fix: Move Series Information to Separate Row (#990 ) * fix ThumbnailEntry alignment * move series information to separate row	2019-10-04 09:26:05 -04:00
ohif-bot	73bc4d9094	chore(release): publish [skip ci] - @ohif/extension-vtk@0.52.0 - @ohif/viewer@1.4.1	2019-10-03 14:05:24 +00:00
James Petts	7709ebb107	Merge pull request #993 from JamesAPetts/vtkViewportSubscriptionManager feat: 🎸 Synced Window Leveling	2019-10-03 15:49:19 +02:00
James A. Petts	559b637290	feat: 🎸 Synced Window Leveling Syncs window leveling for vtkjs viewports in MPR 2D mode. Closes: #558	2019-10-03 15:29:56 +02:00
ohif-bot	36910f2b47	chore(release): publish [skip ci] - @ohif/extension-vtk@0.51.3 - @ohif/core@1.1.0 - @ohif/ui@0.53.0 - @ohif/viewer@1.4.0	2019-10-03 08:02:00 +00:00
Emanuel Fiuza de Oliveira	9e10c2b2de	feat: Use QIDO + WADO to load series metadata individually rather than the entire study metadata at once (#953 )	2019-10-03 09:51:29 +02:00
ohif-bot	c5cbd77cb9	chore(release): publish [skip ci] - @ohif/extension-vtk@0.51.2 - @ohif/core@1.0.2 - @ohif/viewer@1.3.3	2019-10-02 07:49:25 +00:00
Erik Ziegler	b3b4c10e4c	fix: Temporarily sort SEG files to the end of the display set list as a workaround for several metadata issues (#987 )	2019-10-02 09:39:38 +02:00
ohif-bot	855020d730	chore(release): publish [skip ci] - @ohif/extension-vtk@0.51.1 - @ohif/viewer@1.3.2	2019-10-01 20:36:02 +00:00
Zaid Safadi	8503cbce4e	fix(rotate): Use new MPR rotate in react-vtkjs-viewport 0.1.2 (#964 )	2019-10-01 22:21:31 +02:00
ohif-bot	c8667fb2d6	chore(release): publish [skip ci] - @ohif/viewer@1.3.1	2019-10-01 10:07:08 +00:00
Erik Ziegler	674ca9f96f	fix: Exit MPR mode if Layout is changed (#984 )	2019-10-01 11:55:58 +02:00
ohif-bot	7a4b97b4e8	chore(release): publish [skip ci] - @ohif/extension-vtk@0.51.0 - @ohif/ui@0.52.0 - @ohif/viewer@1.3.0	2019-10-01 08:16:51 +00:00
ladeirarodolfo	c79c0c301d	feat: 🎸 MPR UI improvements. Added MinIP, AvgIP, slab thickness slider and mode toggle (#947 )	2019-10-01 10:06:56 +02:00
ohif-bot	ff5060f276	chore(release): publish [skip ci] - @ohif/viewer@1.2.8	2019-10-01 07:42:58 +00:00
Erik Ziegler	dafb26b34b	chore: Fix dev server so that it can be accessed on LAN from other devices (#983 )	2019-10-01 09:32:50 +02:00
ohif-bot	c4f9d5e750	chore(release): publish [skip ci] - @ohif/extension-vtk@0.50.23 - @ohif/ui@0.51.3 - @ohif/viewer@1.2.7	2019-10-01 07:11:22 +00:00
Erik Ziegler	cf40a8388c	fix: Address issues with touch devices and drag/drop causing crashes (#982 )	2019-10-01 09:00:55 +02:00
Erik Ziegler	d596ab5c3d	ci: Try to fix codecov threshold (#976 )	2019-09-30 12:24:14 +02:00
Erik Ziegler	72198eee7d	ci: Increase build timeout limit as a stopgap measure (#977 )	2019-09-30 12:19:44 +02:00
Danny Brown	057f68a9b4	fix: yarn run start as alias for yarn run dev (#973 )	2019-09-28 20:25:47 -04:00
Steve Pieper	034ca64d6b	docs: Update node version in readme (#971 ) Fixes #970	2019-09-28 19:10:20 -04:00