diff --git a/src/actions/loadUserFiles.ts b/src/actions/loadUserFiles.ts
index 351b1447..abfb1339 100644
--- a/src/actions/loadUserFiles.ts
+++ b/src/actions/loadUserFiles.ts
@@ -112,7 +112,11 @@ function filterMatchingNames(
   succeeded: Array<PipelineResultSuccess<ImportResult>>,
   extension: string
 ) {
-  const primaryName = getDataSourceName(primaryDataSource.dataSource);
+  const dicomStore = useDICOMStore();
+  const primaryName =
+    primaryDataSource.dataType === 'dicom'
+      ? dicomStore.volumeInfo[primaryDataSource.dataID].SeriesNumber
+      : getDataSourceName(primaryDataSource.dataSource);
   if (!primaryName) return [];
   const primaryNamePrefix = primaryName.split('.').slice(0, 1).join();
   return filterLoadableDataSources(succeeded)
diff --git a/src/store/segmentGroups.ts b/src/store/segmentGroups.ts
index 726511d1..282ad706 100644
--- a/src/store/segmentGroups.ts
+++ b/src/store/segmentGroups.ts
@@ -304,6 +304,9 @@ export const useSegmentGroupStore = defineStore('segmentGroup', () => {
       );
     }
 
+    // cache name before deleting
+    const baseName = imageStore.metadata[imageID].name;
+
     // Don't remove image if DICOM. User may have selected segment group image as primary selection by now
     const deleteImage = isRegularImage(imageID);
     if (deleteImage) {
@@ -318,7 +321,6 @@ export const useSegmentGroupStore = defineStore('segmentGroup', () => {
     const images =
       componentCount === 1 ? [childImage] : extractEachComponent(childImage);
 
-    const baseName = imageStore.metadata[imageID].name;
     images.forEach(async (image, component) => {
       const matchingParentSpace = await ensureSameSpace(
         parentImage,