实时三维超声心动图评价冠心病患者左心室壁节段收缩功能与运动心电图的相关性研究
Journal of Clinical Ultrasound in Medicine(2013)
Abstract
目的应用实时三维超声心动图(RT-3DE)评价冠心病患者左心室壁节段功能及其与运动心电图的相关性。方法冠心病组患者30例,30例健康者为对照组,RT-3DE分别测量其左室壁17节段的节段每搏量(rSV)、舒张末容积(rEDV)及节段射血率(rPEF),所有受检者进行平板运动试验。结果两组均获得具有清晰内膜边界的实时三维图像和17节段容积-时间曲线;两组间17节段rSV、rEDV、rPEF测值间差异有统计学意义(P﹤0.05);冠心病患者的节段功能与平板运动试验阳性的ST段改变高度相关(P﹤0.05)。结论冠心病患者与健康成人左室壁节段收缩功能存在差异,RT-3DE定量评价左室壁节段收缩功能异常与平板运动试验阳性对冠心病的检测高度相关。
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Key words
Exercise electrocardiography,three-dimensional,Echocardiography,real-time,left ventricule,Segmental function
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