diff --git a/extensions/cornerstone-dicom-rt/src/getSopClassHandlerModule.ts b/extensions/cornerstone-dicom-rt/src/getSopClassHandlerModule.ts
index 7774b094c..50f3fa042 100644
--- a/extensions/cornerstone-dicom-rt/src/getSopClassHandlerModule.ts
+++ b/extensions/cornerstone-dicom-rt/src/getSopClassHandlerModule.ts
@@ -56,7 +56,7 @@ function _getDisplaySetsFromSeries(
     StudyInstanceUID,
     SOPClassHandlerId,
     SOPClassUID,
-    frameOfReferenceUID: null,
+    FrameOfReferenceUID: null,
     referencedImages: null,
     referencedSeriesInstanceUID: null,
     referencedDisplaySetInstanceUID: null,
@@ -96,7 +96,7 @@ function _getDisplaySetsFromSeries(
   displaySet.referencedImages = instance.ReferencedSeriesSequence.ReferencedInstanceSequence;
   displaySet.referencedSeriesInstanceUID = referencedSeries.SeriesInstanceUID;
 
-  displaySet.frameOfReferenceUID =
+  displaySet.FrameOfReferenceUID =
     instance.ReferencedFrameOfReferenceSequence?.[0]?.FrameOfReferenceUID;
 
   const { displaySetService } = servicesManager.services;
@@ -117,7 +117,7 @@ function _getDisplaySetsFromSeries(
         if (addedDisplaySet.SeriesInstanceUID === displaySet.referencedSeriesInstanceUID) {
           displaySet.referencedDisplaySetInstanceUID = addedDisplaySet.displaySetInstanceUID;
           displaySet.isReconstructable = addedDisplaySet.isReconstructable;
-          displaySet.frameOfReferenceUID = addedDisplaySet.frameOfReferenceUID;
+          displaySet.FrameOfReferenceUID = addedDisplaySet.FrameOfReferenceUID;
           unsubscribe();
         }
       }
@@ -126,7 +126,7 @@ function _getDisplaySetsFromSeries(
     const [referencedDisplaySet] = referencedDisplaySets;
     displaySet.referencedDisplaySetInstanceUID = referencedDisplaySet.displaySetInstanceUID;
     displaySet.isReconstructable = referencedDisplaySet.isReconstructable;
-    displaySet.frameOfReferenceUID = referencedDisplaySet.frameOfReferenceUID;
+    displaySet.FrameOfReferenceUID = referencedDisplaySet.FrameOfReferenceUID;
   }
 
   displaySet.load = ({ headers, createSegmentation = true }) =>
diff --git a/extensions/cornerstone-dicom-seg/src/getSopClassHandlerModule.ts b/extensions/cornerstone-dicom-seg/src/getSopClassHandlerModule.ts
index 21b9596e4..1bb2b3a8f 100644
--- a/extensions/cornerstone-dicom-seg/src/getSopClassHandlerModule.ts
+++ b/extensions/cornerstone-dicom-seg/src/getSopClassHandlerModule.ts
@@ -50,7 +50,7 @@ function _getDisplaySetsFromSeries(
     StudyInstanceUID,
     SOPClassHandlerId,
     SOPClassUID,
-    frameOfReferenceUID: FrameOfReferenceUID,
+    FrameOfReferenceUID,
     referencedImages: null,
     referencedSeriesInstanceUID: null,
     referencedDisplaySetInstanceUID: null,
@@ -106,7 +106,7 @@ function _getDisplaySetsFromSeries(
         if (addedDisplaySet.SeriesInstanceUID === displaySet.referencedSeriesInstanceUID) {
           displaySet.referencedDisplaySetInstanceUID = addedDisplaySet.displaySetInstanceUID;
           displaySet.isReconstructable = addedDisplaySet.isReconstructable;
-          displaySet.frameOfReferenceUID = addedDisplaySet.frameOfReferenceUID;
+          displaySet.FrameOfReferenceUID = addedDisplaySet.FrameOfReferenceUID;
           unsubscribe();
         }
       }
@@ -114,7 +114,7 @@ function _getDisplaySetsFromSeries(
   } else {
     displaySet.referencedDisplaySetInstanceUID = referencedDisplaySet.displaySetInstanceUID;
     displaySet.isReconstructable = referencedDisplaySet.isReconstructable;
-    displaySet.frameOfReferenceUID = referencedDisplaySet.frameOfReferenceUID;
+    displaySet.FrameOfReferenceUID = referencedDisplaySet.FrameOfReferenceUID;
   }
 
   displaySet.load = async ({ headers }) =>
diff --git a/extensions/cornerstone-dicom-sr/src/getSopClassHandlerModule.ts b/extensions/cornerstone-dicom-sr/src/getSopClassHandlerModule.ts
index 50f75f234..f30dda6cb 100644
--- a/extensions/cornerstone-dicom-sr/src/getSopClassHandlerModule.ts
+++ b/extensions/cornerstone-dicom-sr/src/getSopClassHandlerModule.ts
@@ -230,7 +230,7 @@ async function _load(
 
 function _measurementBelongsToDisplaySet({ measurement, displaySet }) {
   return (
-    measurement.coords[0].ReferencedFrameOfReferenceSequence === displaySet.frameOfReferenceUID
+    measurement.coords[0].ReferencedFrameOfReferenceSequence === displaySet.FrameOfReferenceUID
   );
 }
 
diff --git a/extensions/cornerstone-dicom-sr/src/utils/hydrateStructuredReport.ts b/extensions/cornerstone-dicom-sr/src/utils/hydrateStructuredReport.ts
index 92878a758..b934f6562 100644
--- a/extensions/cornerstone-dicom-sr/src/utils/hydrateStructuredReport.ts
+++ b/extensions/cornerstone-dicom-sr/src/utils/hydrateStructuredReport.ts
@@ -145,7 +145,7 @@ export default function hydrateStructuredReport(
 
   for (const FrameOfReferenceUID of frameOfReferenceUIDs) {
     const displaySetsFOR = displaySetService.getDisplaySetsBy(
-      ds => ds.frameOfReferenceUID === FrameOfReferenceUID && !ds.isDerivedDisplaySet
+      ds => ds.FrameOfReferenceUID === FrameOfReferenceUID && !ds.isDerivedDisplaySet
     );
     const ds = chooseDisplaySet(displaySetsFOR, FrameOfReferenceUID);
     if (!ds) {
@@ -335,7 +335,7 @@ function getReferenceData3D(toolData, servicesManager: Types.ServicesManager) {
   const { points } = toolData.annotation.data.handles;
   const { displaySetService } = servicesManager.services;
   const displaySetsFOR = displaySetService.getDisplaySetsBy(
-    ds => ds.frameOfReferenceUID === FrameOfReferenceUID
+    ds => ds.FrameOfReferenceUID === FrameOfReferenceUID
   );
   if (!displaySetsFOR.length || !points?.length) {
     return {
diff --git a/extensions/cornerstone/src/components/ViewportDataOverlaySettingMenu/utils.ts b/extensions/cornerstone/src/components/ViewportDataOverlaySettingMenu/utils.ts
index 36803c917..d797e773c 100644
--- a/extensions/cornerstone/src/components/ViewportDataOverlaySettingMenu/utils.ts
+++ b/extensions/cornerstone/src/components/ViewportDataOverlaySettingMenu/utils.ts
@@ -80,8 +80,8 @@ export function getEnhancedDisplaySets({ viewportId, services }) {
 
     // Check if Frame of Reference matches
     if (
-      displaySet.frameOfReferenceUID &&
-      displaySet.frameOfReferenceUID !== backgroundDisplaySet.frameOfReferenceUID
+      displaySet.FrameOfReferenceUID &&
+      displaySet.FrameOfReferenceUID !== backgroundDisplaySet.FrameOfReferenceUID
     ) {
       return {
         ...displaySet,
diff --git a/extensions/cornerstone/src/getSopClassHandlerModule.js b/extensions/cornerstone/src/getSopClassHandlerModule.js
index 3f8ca69ea..157b7aef2 100644
--- a/extensions/cornerstone/src/getSopClassHandlerModule.js
+++ b/extensions/cornerstone/src/getSopClassHandlerModule.js
@@ -82,7 +82,7 @@ function _getDisplaySetsFromSeries(instances, servicesManager, extensionManager)
     SOPInstanceUID,
     SeriesInstanceUID,
     StudyInstanceUID,
-    frameOfReferenceUID: FrameOfReferenceUID,
+    FrameOfReferenceUID,
     SOPClassHandlerId,
     SOPClassUID,
     SeriesDescription: SeriesDescription || 'Microscopy Data',
diff --git a/extensions/default/src/getSopClassHandlerModule.js b/extensions/default/src/getSopClassHandlerModule.js
index debc72c27..b45a85134 100644
--- a/extensions/default/src/getSopClassHandlerModule.js
+++ b/extensions/default/src/getSopClassHandlerModule.js
@@ -113,7 +113,7 @@ const makeDisplaySet = (instances, index) => {
     label:
       instance.SeriesDescription ||
       `${i18n.t('Series')} ${instance.SeriesNumber} - ${i18n.t(instance.Modality)}`,
-    frameOfReferenceUID: instance.FrameOfReferenceUID,
+    FrameOfReferenceUID: instance.FrameOfReferenceUID,
   });
 
   const imageIds = dataSource.getImageIdsForDisplaySet(imageSet);
diff --git a/extensions/dicom-microscopy/src/services/MicroscopyService.ts b/extensions/dicom-microscopy/src/services/MicroscopyService.ts
index f15c9ce03..5a25b20fc 100644
--- a/extensions/dicom-microscopy/src/services/MicroscopyService.ts
+++ b/extensions/dicom-microscopy/src/services/MicroscopyService.ts
@@ -329,16 +329,16 @@ export default class MicroscopyService extends PubSubService {
     const studyMetadata = DicomMetadataStore.getStudy(StudyInstanceUID);
     const smDisplaySet = displaySets.find(ds => ds.Modality === 'SM');
 
-    const { frameOfReferenceUID, othersFrameOfReferenceUID } = smDisplaySet;
+    const { FrameOfReferenceUID, othersFrameOfReferenceUID } = smDisplaySet;
 
     if (!studyMetadata) {
       return;
     }
 
-    let derivedDisplaySets = frameOfReferenceUID
+    let derivedDisplaySets = FrameOfReferenceUID
       ? displaySets.filter(
           ds =>
-            ds.ReferencedFrameOfReferenceUID === frameOfReferenceUID ||
+            ds.ReferencedFrameOfReferenceUID === FrameOfReferenceUID ||
             // sometimes each depth instance has the different FrameOfReferenceID
             othersFrameOfReferenceUID.includes(ds.ReferencedFrameOfReferenceUID)
         )
diff --git a/extensions/dicom-microscopy/src/utils/getSourceDisplaySet.js b/extensions/dicom-microscopy/src/utils/getSourceDisplaySet.js
index 1bae0852e..5a42a34f3 100644
--- a/extensions/dicom-microscopy/src/utils/getSourceDisplaySet.js
+++ b/extensions/dicom-microscopy/src/utils/getSourceDisplaySet.js
@@ -22,7 +22,7 @@ export default function getSourceDisplaySet(allDisplaySets, microscopySRDisplayS
   const referencedDisplaySet = otherDisplaySets.find(
     displaySet =>
       displaySet.Modality === 'SM' &&
-      (displaySet.frameOfReferenceUID === ReferencedFrameOfReferenceUID ||
+      (displaySet.FrameOfReferenceUID === ReferencedFrameOfReferenceUID ||
         // sometimes each depth instance has the different FrameOfReferenceID
         displaySet.othersFrameOfReferenceUID.includes(ReferencedFrameOfReferenceUID))
   );
diff --git a/platform/core/src/types/DisplaySet.ts b/platform/core/src/types/DisplaySet.ts
index a07a5e2c8..dd70b5494 100644
--- a/platform/core/src/types/DisplaySet.ts
+++ b/platform/core/src/types/DisplaySet.ts
@@ -61,7 +61,7 @@ export type DisplaySet = {
    * The FrameOfReferenceUID shared by every frame within this display set.
    * It will be undefined if the frames do not all share the same Frame of Reference.
    */
-  frameOfReferenceUID?: string;
+  FrameOfReferenceUID?: string;
 
   SeriesDate?: string;
   SeriesTime?: string;