二尖瓣狭窄的M型超声心动图变化为?()A.二尖瓣前后叶呈同向运动,其特异性强B.二尖瓣曲线增厚,回声增强C.二尖瓣前叶EF斜率降低D.左心房扩...

作者: rantiku 人气: - 评论: 0
问题 二尖瓣狭窄的M型超声心动图变化为?()
选项 A.二尖瓣前后叶呈同向运动,其特异性强 B.二尖瓣曲线增厚,回声增强 C.二尖瓣前叶EF斜率降低 D.左心房扩大,合并心房纤颤者可见左房附壁血栓 E.二尖瓣前叶呈城墙样改变
答案 ABCDE
解析

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