二维多普勒超声心动图对主动脉返流的诊断

Two-dimensional Doppller Echocardiography in the Evaluation of Aortic Regurgitation.

本研究报道了从139例心脏病人中经二维多普勒超声心动图测得的20例(14%)主动脉返流和另10例正常人的资料。二维多普勒超声测得本组病人异常返流流速为2.3±1.2m/s,90%分布时相占全舒张期,估算的返流跨瓣压差为26±27mmHg,最高达100mmHg,而10例正常人均未发现主动脉返流的多普勒血流证据。为评价诊断主动脉返流的灵敏度,将所得多普勒资料与临床听诊、单纯二维超声显象和M型超声心动图异常表现作了对比。结果表明,近代二维多普勒超声心动图对诊断主动脉返流具有最高的灵敏度和特异性。

A total of 139 patients(pts) and 10 normals were studied with a complete two-dimensional (2D), Mmode and Doppler echocardiographic examination, 20 pts (14%) had aortic regurgitation with a peak regurgitatant velocity of 2.3±1.2m/s, pandiastole in 90% pts and regurgitant pressure gradient of 26±27mmHg.No aortic regurgitation was detected by these techniques in 10 normals. The diagnosis of aortic regurgitation by 2D Doppler echocardiography was found to be the highest sensitivity and specificity as compared with that by clinical auscultation, M-mode and 2D echocardiograpiiy alon(?)