摘要
本文应用二维超声心动图（ＥＣＨＯ）卧位踏车运动试验方法，测定正常人和冠心病人运动前后的峰值收缩压与左室收缩未容量指数的比值（ＳＰ／ＥＳＶＩ）及左室射血分数（ＬＶＥＦ）的变化（△ＳＰ／ＥＳＶＩ和△ＬＶＥＦ）。结果显示△ＳＰ／ＥＳＶＩ和△ＬＶＥＦ的敏感性分别为９０％和６５％（Ｐ＜０．０５），特异性分别为５７％和６２％（Ｐ＞０．０５），准确性分别为６８％和６３％（Ｐ＞０．０５）。初步认为运动ＳＰ／ＥＳＶＩ是ＥＣＨＯ诊断冠心病的一种较ＬＶＥＦ变化更敏感的指标。
The changes of the rest and exercise peak systolic pressure / end-systolic volume index ratio(△SP/ ESVI) and left ventricular ejection fraction(△LVEF) were determined by exercise twodimensional echocardiography in patients with coronary artery disease and normal subjects before and after exercise. The results revealed that the sensitivity of △SP / ESVI and LVEF was 90% and 65%(both P<0.05),the specificity was 57 % and 62%(both P>0.05)and the accuracy was 68% and 63 %(both P>0.05),respectively.It was concluded that A SP / ESVI was a more sensitive index than △LVEF in detecting coronary artery disease by two-dimensional echocardiography.
关键词
超声心动图
运动试验
冠心病
coronary artery disease
two-dimensional echocardiography
exercise test
