diff --git a/src/views/trials/trials-panel/reading/dicoms/components/IVUS/QuestionList.vue b/src/views/trials/trials-panel/reading/dicoms/components/IVUS/QuestionList.vue
index c4ac6726..c6925575 100644
--- a/src/views/trials/trials-panel/reading/dicoms/components/IVUS/QuestionList.vue
+++ b/src/views/trials/trials-panel/reading/dicoms/components/IVUS/QuestionList.vue
@@ -681,16 +681,16 @@ export default {
     },
     setFormItemData(obj) {
       this.qsForm[obj.key] = obj.val
-      // if (obj.key === this.eemId || obj.key === this.lumenId) {
-      //   const eem = this.qsForm[this.eemId]
-      //   const lumen = this.qsForm[this.lumenId]
-      //   if (isNaN(parseFloat(eem)) || isNaN(parseFloat(lumen))) {
-      //     this.$set(this.qsForm, this.diffId, null)
-      //   } else {
-      //     const diff = parseFloat(eem) - parseFloat(lumen)
-      //     this.$set(this.qsForm, this.diffId, this.numberToFixed(diff))
-      //   }
-      // }
+      if (obj.key === this.eemId || obj.key === this.lumenId) {
+        const eem = this.qsForm[this.eemId]
+        const lumen = this.qsForm[this.lumenId]
+        if (isNaN(parseFloat(eem)) || isNaN(parseFloat(lumen))) {
+          this.$set(this.qsForm, this.diffId, null)
+        } else {
+          const diff = parseFloat(eem) - parseFloat(lumen)
+          this.$set(this.qsForm, this.diffId, this.numberToFixed(diff))
+        }
+      }
     },
     handleAddOrEdit(type, row, index) {
       this.addOrEdit.title = row.QuestionName