diff --git a/src/views/trials/trials-panel/reading/dicoms3D/components/MPRViewport.vue b/src/views/trials/trials-panel/reading/dicoms3D/components/MPRViewport.vue
index ed500192..5dd181d3 100644
--- a/src/views/trials/trials-panel/reading/dicoms3D/components/MPRViewport.vue
+++ b/src/views/trials/trials-panel/reading/dicoms3D/components/MPRViewport.vue
@@ -40,10 +40,10 @@
         <div v-if="series" class="right-bottom-text">
             <div v-show="imageInfo.location">Location: {{
                 `${Number(imageInfo.location).toFixed(digitPlaces)} mm`
-                }}</div>
+            }}</div>
             <div v-show="imageInfo.sliceThickness">Slice Thickness: {{
                 `${Number(imageInfo.sliceThickness).toFixed(digitPlaces)} mm`
-                }}</div>
+            }}</div>
             <div v-show="imageInfo.wwwc">WW/WL: {{ imageInfo.wwwc }}</div>
         </div>
         <div class="orientation-top">
@@ -190,10 +190,10 @@ export default {
                 const totalImages = this.imageInfo.total;
 
                 // 手动实现循环逻辑
-                if (currentImageIdIndex >= totalImages - 1) {
+                if (currentImageIdIndex >= totalImages - 1 && e.wheelDeltaY < 0) {
                     // 滚动到最后一张时跳回第一张
                     csUtils.jumpToSlice(viewport.element, { imageIndex: 0 });
-                } else if (currentImageIdIndex <= 0) {
+                } else if (currentImageIdIndex <= 0 && e.wheelDeltaY > 0) {
                     // 滚动到第一张时跳回最后一张
                     csUtils.jumpToSlice(viewport.element, { imageIndex: totalImages - 1 });
                 }
diff --git a/src/views/trials/trials-panel/reading/dicoms3D/components/VolumeViewport.vue b/src/views/trials/trials-panel/reading/dicoms3D/components/VolumeViewport.vue
index 221a0352..6c3bdcf6 100644
--- a/src/views/trials/trials-panel/reading/dicoms3D/components/VolumeViewport.vue
+++ b/src/views/trials/trials-panel/reading/dicoms3D/components/VolumeViewport.vue
@@ -188,10 +188,10 @@ export default {
                 const totalImages = this.imageInfo.total;
 
                 // 手动实现循环逻辑
-                if (currentImageIdIndex >= totalImages - 1) {
+                if (currentImageIdIndex >= totalImages - 1 && e.wheelDeltaY < 0) {
                     // 滚动到最后一张时跳回第一张
                     csUtils.jumpToSlice(viewport.element, { imageIndex: 0 });
-                } else if (currentImageIdIndex <= 0) {
+                } else if (currentImageIdIndex <= 0 && e.wheelDeltaY > 0) {
                     // 滚动到第一张时跳回最后一张
                     csUtils.jumpToSlice(viewport.element, { imageIndex: totalImages - 1 });
                 }