diff --git a/src/views/trials/trials-panel/reading/dicoms3D/components/ReadPage.vue b/src/views/trials/trials-panel/reading/dicoms3D/components/ReadPage.vue
index 6f99003e..88689e51 100644
--- a/src/views/trials/trials-panel/reading/dicoms3D/components/ReadPage.vue
+++ b/src/views/trials/trials-panel/reading/dicoms3D/components/ReadPage.vue
@@ -2741,6 +2741,9 @@ export default {
       const studyList = this.visitTaskList[i].StudyList
       let series = this.getMarkedSeries(studyList, obj.annotation, true)
       if (series) {
+        if (this.isFusion && series.SeriesInstanceUid !== this.fusionSerieId.ct && series.SeriesInstanceUid !== this.fusionSerieId.pt) {
+          return await this.$confirm(this.$t('trials:reading:confirm:fusionPTOrCTInconsistent'))
+        }
         this.activeViewportIndex = this.cells.length - 1
         if (obj.annotation.from === 'MPR') {
           let viewPlaneNormal = obj.annotation?.metadata?.viewPlaneNormal.map(i => i == 0 ? 0 : i).join(',')