diff --git a/src/views/trials/trials-panel/reading/dicoms/components/DicomViewer.vue b/src/views/trials/trials-panel/reading/dicoms/components/DicomViewer.vue
index 3446e1a..9dc33b9 100644
--- a/src/views/trials/trials-panel/reading/dicoms/components/DicomViewer.vue
+++ b/src/views/trials/trials-panel/reading/dicoms/components/DicomViewer.vue
@@ -379,7 +379,7 @@
             <dicom-canvas
               v-if="canvasW"
               :ref="`dicomCanvas${i-1}`"
-              :style="{width:canvasW,height: canvasH}"
+              :style="{width: fullScreenIndex === i-1 ? fullScreenWidth : canvasW,height: fullScreenIndex === i-1 ? fullScreenHeight : canvasH}"
               :canvas-index="i-1"
               :is-active="i-1===currentDicomCanvasIndex"
               :is-scroll-sync="isScrollSync"
@@ -914,7 +914,11 @@ export default {
       petctWindow: null,
 
       AspectRatio: 1,
-      listShow: true
+      listShow: true,
+
+      fullScreenIndex: -1,
+      fullScreenWidth: window.innerWidth - 570 + 'px',
+      fullScreenHeight: window.innerHeight - 130 + 'px'
     }
   },
 
@@ -1286,22 +1290,29 @@ export default {
       this.personalConfigDialog.visible = true
     },
     setCornerstoneStyle(i) {
+      if (this.layoutCol === 1 && this.layoutRow === 1) {
+        this.fullScreenIndex = -1
+        return
+      }
       if (this.cornerstoneStyle.position) {
         this.cornerstoneStyle = {}
         this.setCanvasStyle()
+        this.fullScreenIndex = -1
       } else {
         this.cornerstoneStyle = {
           position: 'absolute',
-          top: '72px',
+          top: '67px',
           left: '0px',
           right: '350px',
-          zIndex: 10
+          zIndex: 10,
         }
-        this.canvasW = window.innerWidth - 570 + 'px'
-        this.canvasH = window.innerHeight - 130 + 'px'
+        this.fullScreenIndex = this.currentDicomCanvasIndex
+        let w = 570
+        if (!this.studyShow) w -= 170
+        if (!this.listShow) w -= 330
+        this.fullScreenWidth = window.innerWidth - w + 'px'
       }
       this.$nextTick(() => {
-        // this.$refs[`dicomCanvas${this.currentDicomCanvasIndex}`][0].reloadCanvas()
         for (var i = 0; i < this.maxCanvas; i++) {
           this.$refs[`dicomCanvas${i}`][0].reloadCanvas()
         }
@@ -1839,6 +1850,7 @@ export default {
     },
     // 切换布局
     changeLayout(name) {
+      this.fullScreenIndex = -1
       if (!name) name = this.layout ? this.layout : 'A'
       if (this.activeTool) {
         if (this.$refs[`dicomCanvas${this.currentDicomCanvasIndex}`][0].isCurrentTask && this.$refs[`dicomCanvas${this.currentDicomCanvasIndex}`][0].readingTaskState < 2) {