Handle missing ReferencedInstanceSequence (#47)

Author: paulineribeyre

platform/core/src/studies/services/wado/getReferencedSeriesSequence.js

@@ -21,16 +21,18 @@ const getReferencedSeriesSequence = instance => {
       const referencedInstanceSequenceRaw = referencedSeries['0008114A'];
       const referencedInstanceSequence = [];
 
-      referencedInstanceSequenceRaw.Value.forEach(referencedInstance => {
-        referencedInstanceSequence.push({
-          referencedSOPClassUID: DICOMWeb.getString(
-            referencedInstance['00081150']
-          ),
-          referencedSOPInstanceUID: DICOMWeb.getString(
-            referencedInstance['00081155']
-          ),
+      if (referencedInstanceSequenceRaw) {
+        referencedInstanceSequenceRaw.Value.forEach(referencedInstance => {
+          referencedInstanceSequence.push({
+            referencedSOPClassUID: DICOMWeb.getString(
+              referencedInstance['00081150']
+            ),
+            referencedSOPInstanceUID: DICOMWeb.getString(
+              referencedInstance['00081155']
+            ),
+          });
         });
-      });
+      }
 
       referencedSeriesSequence.push({
         referencedSeriesInstanceUID,