From 47e231f0618443e70c1daae718e7dd0908954b52 Mon Sep 17 00:00:00 2001
From: Joe Boccanfuso <109477394+jbocce@users.noreply.github.com>
Date: Mon, 28 Jul 2025 09:35:29 -0400
Subject: [PATCH] fix(multiframes): Corrected combining frame instances for
 multiframes. (#5264)

---
 platform/core/src/utils/combineFrameInstance.ts | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/platform/core/src/utils/combineFrameInstance.ts b/platform/core/src/utils/combineFrameInstance.ts
index 64c6f85e5..be1066e19 100644
--- a/platform/core/src/utils/combineFrameInstance.ts
+++ b/platform/core/src/utils/combineFrameInstance.ts
@@ -26,7 +26,14 @@ const combineFrameInstance = (frame, instance) => {
   instance.ImageType = dicomSplit(ImageType);
   const frameNumber = Number.parseInt(frame || 1);
 
-  if (PerFrameFunctionalGroupsSequence && SharedFunctionalGroupsSequence) {
+  const hasDetectorButMissingSpatialInfo =
+    instance.DetectorInformationSequence &&
+    (!instance.ImagePositionPatient || !instance.ImageOrientationPatient);
+
+  if (
+    (PerFrameFunctionalGroupsSequence && SharedFunctionalGroupsSequence) ||
+    hasDetectorButMissingSpatialInfo
+  ) {
     // this is to fix NM multiframe datasets with position and orientation
     // information inside DetectorInformationSequence
     if (!instance.ImageOrientationPatient && instance.DetectorInformationSequence) {