试题与答案

M型超声显示二尖瓣前叶DE幅度减低,EF斜率减慢,EPSS增大且前后叶呈同向运动,此

题型:单项选择题

题目:

M型超声显示二尖瓣前叶DE幅度减低,EF斜率减慢,EPSS增大且前后叶呈同向运动,此时最可能的诊断是().

A.二尖瓣脱垂

B.二尖瓣关闭不全

C.二尖瓣狭窄

D.二尖瓣上赘生物形成

E.二尖瓣环钙化

答案:

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