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 a74a98da..e4ecaaa3 100644
--- a/src/views/trials/trials-panel/reading/dicoms3D/components/ReadPage.vue
+++ b/src/views/trials/trials-panel/reading/dicoms3D/components/ReadPage.vue
@@ -2533,6 +2533,10 @@ export default {
       if (this.isFusion || this.isMPR) {
         const confirm = await this.$confirm(this.$t('trials:reading:confirm:changeStack'))
         if (!confirm) return false
+        if (this.isMPR) {
+          this.rows = 1
+          this.cols = 1
+        }
         this.isFusion = false
         this.isMPR = false
         this.fullScreenIndex = null