fix(volumeLoad): should not have missing slices when loading (#3287)

* fix(volumeLoad): should not have missing slices when loading

* add review comments

extensions/cornerstone/src/getHangingProtocolModule.ts

@@ -11,7 +11,7 @@ const mpr: Types.HangingProtocol.Protocol = {
   // Unknown number of priors referenced - so just match any study
   numberOfPriorsReferenced: 0,
   protocolMatchingRules: [],
-  // imageLoadStrategy: 'nth',
+  imageLoadStrategy: 'interleaveTopToBottom',
   callbacks: {
     // Switches out of MPR mode when the layout change button is used
     onLayoutChange: [
@@ -170,7 +170,7 @@ const mprAnd3DVolumeViewport = {
   availableTo: {},
   editableBy: {},
   protocolMatchingRules: [],
-  imageLoadStrategy: 'interleaveTopToBottom',
+  imageLoadStrategy: 'interleaveCenter',
   displaySetSelectors: {
     mprDisplaySet: {
       seriesMatchingRules: [
@@ -184,6 +184,15 @@ const mprAnd3DVolumeViewport = {
           },
           required: true,
         },
+        {
+          attribute: 'Modality',
+          constraint: {
+            equals: {
+              value: 'CT',
+            },
+          },
+          required: true,
+        },
       ],
     },
   },