fix(tools): check if seriesNumber is an undefined properly (#4338)

extensions/cornerstone/src/utils/measurementServiceMappings/LivewireContour.ts

@@ -142,7 +142,7 @@ function getDisplayText(annotation, displaySet, customizationService) {
   const frameText = displaySet.isMultiFrame ? ` F: ${frameNumber}` : '';
 
   const { SeriesNumber } = displaySet;
-  if (SeriesNumber) {
+  if (SeriesNumber !== undefined) {
     displayText.push(`S: ${SeriesNumber}${instanceText}${frameText}`);
   }
 

extensions/cornerstone/src/utils/measurementServiceMappings/PlanarFreehandROI.ts

@@ -149,7 +149,7 @@ function getDisplayText(annotation, displaySet, customizationService, displaySet
   const frameText = displaySet.isMultiFrame ? ` F: ${frameNumber}` : '';
 
   const { SeriesNumber } = displaySet;
-  if (SeriesNumber) {
+  if (SeriesNumber !== undefined) {
     displayTextArray.push(`S: ${SeriesNumber}${instanceText}${frameText}`);
   }
 

extensions/cornerstone/src/utils/measurementServiceMappings/SplineROI.ts

@@ -148,7 +148,7 @@ function getDisplayText(annotation, displaySet, customizationService) {
   const frameText = displaySet.isMultiFrame ? ` F: ${frameNumber}` : '';
 
   const { SeriesNumber } = displaySet;
-  if (SeriesNumber) {
+  if (SeriesNumber !== undefined) {
     displayTextArray.push(`S: ${SeriesNumber}${instanceText}${frameText}`);
   }