fix(RT) : Make ContourImageSequence check under ROIContourSequence->ContourImageSequence optional (#3476)

extensions/cornerstone-dicom-rt/src/loadRTStruct.js

@@ -181,12 +181,6 @@ export default async function loadRTStruct(
         ContourGeometricType,
       } = ContourSequenceArray[c];
 
-      const sopInstanceUID = ContourImageSequence.ReferencedSOPInstanceUID;
-      const imageId = _getImageId(imageIdSopInstanceUidPairs, sopInstanceUID);
-
-      if (!imageId) {
-        continue;
-      }
       let isSupported = false;
 
       const points = [];

extensions/cornerstone/src/services/SegmentationService/SegmentationService.ts

@@ -816,7 +816,12 @@ class SegmentationService extends PubSubService {
     const segmentsCachedStats = {};
     const initializeContour = async rtStructData => {
       const { data, id, color, segmentIndex, geometryId } = rtStructData;
-      const geometry = await geometryLoader.createAndCacheGeometry(geometryId, {
+
+      // catch error instead of failing to allow loading to continue
+      try {
+        const geometry = await geometryLoader.createAndCacheGeometry(
+          geometryId,
+          {
             geometryData: {
               data,
               id,
@@ -825,7 +830,8 @@ class SegmentationService extends PubSubService {
               segmentIndex,
             },
             type: csEnums.GeometryType.CONTOUR,
-      });
+          }
+        );
 
         const contourSet = geometry.data;
         const centroid = contourSet.getCentroid();
@@ -855,6 +861,9 @@ class SegmentationService extends PubSubService {
           // some missing ROINumbers
           numSegments: allRTStructData.length,
         });
+      } catch (e) {
+        console.warn(e);
+      }
     };
 
     const promiseArray = [];