diff --git a/src/views/trials/trials-panel/reading/dicoms/components/Fusion/PetCt.vue b/src/views/trials/trials-panel/reading/dicoms/components/Fusion/PetCt.vue
index 295304c7..4c14176d 100644
--- a/src/views/trials/trials-panel/reading/dicoms/components/Fusion/PetCt.vue
+++ b/src/views/trials/trials-panel/reading/dicoms/components/Fusion/PetCt.vue
@@ -691,9 +691,9 @@ export default {
       this.setUpToolGroups()
 
       this.setUpSynchronizers()
-      this.$refs['CT_AXIAL'].scroll(0)
-      this.$refs['PT_AXIAL'].scroll(0)
-      this.$refs['FUSION_AXIAL'].scroll(0)
+      // this.$refs['CT_AXIAL'].scroll(0)
+      // this.$refs['PT_AXIAL'].scroll(0)
+      // this.$refs['FUSION_AXIAL'].scroll(0)
       const viewport = renderingEngine.getViewport('CT_AXIAL')
       if (viewport) {
         this.defaultCamera = viewport.getCamera()
@@ -1996,12 +1996,14 @@ export default {
         if (index > -1) {
           viewportId = 'PT_AXIAL'
           this.$refs[viewportId].scroll(index)
+        }else{
+          index = this.ctSeries.instanceList.findIndex(i => i === instanceId)
+          if (index > -1) {
+            viewportId = 'CT_AXIAL'
+            this.$refs[viewportId].scroll(index)
+          }
         }
-        index = this.ctSeries.instanceList.findIndex(i => i === instanceId)
-        if (index > -1) {
-          viewportId = 'CT_AXIAL'
-          this.$refs[viewportId].scroll(index)
-        }
+        
         resolve()
       })
     },
diff --git a/src/views/trials/trials-panel/reading/dicoms/components/Fusion/Viewport.vue b/src/views/trials/trials-panel/reading/dicoms/components/Fusion/Viewport.vue
index 0b72eed8..9c96b17d 100644
--- a/src/views/trials/trials-panel/reading/dicoms/components/Fusion/Viewport.vue
+++ b/src/views/trials/trials-panel/reading/dicoms/components/Fusion/Viewport.vue
@@ -232,7 +232,9 @@ export default {
   methods: {
     handleVolumeNewImage(e) {
       const { imageIndex } = e.detail
-      this.seriesInfo.imageIdIndex = imageIndex
+      if(this.viewportId === e.detail.viewportId && this.index !== 4){
+        this.seriesInfo.imageIdIndex = imageIndex
+      }
       renderingEngine = getRenderingEngine(this.renderingEngineId)
       viewport = renderingEngine.getViewport(this.viewportId)