diff --git a/src/views/trials/trials-panel/reading/dicoms/components/DicomCanvas.vue b/src/views/trials/trials-panel/reading/dicoms/components/DicomCanvas.vue
index 8416a78..0e03cb4 100644
--- a/src/views/trials/trials-panel/reading/dicoms/components/DicomCanvas.vue
+++ b/src/views/trials/trials-panel/reading/dicoms/components/DicomCanvas.vue
@@ -560,7 +560,7 @@ export default {
         e.stopImmediatePropagation()
         e.stopPropagation()
         e.preventDefault()
-      } else if (this.activeToolName === 'Length' || this.activeToolName === 'Bidirectional' && this.readingTaskState < 2) {
+      } else if ((this.activeToolName === 'Length' || this.activeToolName === 'Bidirectional') && this.readingTaskState < 2) {
         if (!e.detail.image.columnPixelSpacing || !e.detail.image.rowPixelSpacing) {
           // '该影像不具备测量长度所需的必要数据，不能进行长度测量。请选择其他工具进行标注。'
           this.$confirm(this.$t('trials:reading:warnning:msg56'), '', {
@@ -586,6 +586,15 @@ export default {
           e.preventDefault()
         }
       } else if (this.IsCriticalSequence) {
+        if (this.activeToolName) {
+          // '关键帧上不允许画标注。'
+          this.$confirm(this.$t('trials:reading:warnning:msg99'), '', {
+            showCancelButton: false,
+            type: 'warning'
+          }).then(() => {
+
+          }).catch(() => { })
+        }
         e.stopImmediatePropagation()
         e.stopPropagation()
         e.preventDefault()
@@ -1826,6 +1835,9 @@ export default {
       //   console.log(toolName)
       //   cornerstoneTools.setToolPassiveForElement(this.canvas, toolName)
       // })
+      if (toolName === 'Wwwc') {
+        this.isInitWwwc = false
+      }
       this.activeToolName = toolName
       this.$nextTick(() => {
         // console.log(cornerstoneTools.isToolActiveForElement(this.canvas, 'Bidirectional'))