二尖瓣返流程度的超声脉冲多普勒肺静脉血流探测与评价

来源 :实用心脑肺血管病杂志 | 被引量 : 0次 | 上传用户:QiuWK
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目的探讨脉冲多普勒肺静脉血流评价二尖瓣返流的程度. 方法对37例二尖瓣关闭不全患者行超声脉冲多普勒检测左、右上肺静脉血流,将收缩期负向频谱,峰值减低频谱分为Ⅱ~Ⅳ度. 结果 21例Ⅳ度返流者检出20例,敏感性为95%,特异性为100%;右上肺静脉常显示血流负向频谐,左上肺静脉常显示峰值减低频谱. 结论脉冲多普勒探测肺静脉血流可用于评价二尖瓣返流程度.
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