【摘要】目的：通过测量三尖瓣环组织多普勒收缩期峰值速度(TA Sa)及M型运动位移(TAPSE)，探讨风湿性心脏病患者换瓣前后右室功能变化。方法：应用组织多普勒成像技术(PW.TDI)及M型超声测量66例风心病患者换瓣前后TA Sa及TAPSE，并比较其差异。结果：66例患者换瓣术后TA Sa值及TAPSE值均较术前增高，差异有统计学意义(P<0.05)。结论：虽然TA Sa及TAPSE在右心室功能评价方面具有一定局限性，但其能敏感、有效地评价风心病患者换瓣前后右室功能的变化，可为临床风湿性心脏病的诊断提供更充分的依据。

    【关键词】组织多普勒；M型位移；风湿性心脏病

    [Abstract]Objective：To evaluate the right ventricular function before and after valve replacement operation in patients with rheumatic heart disease by measuring the tricuspid annular systolic velocity (TA Sa) and tricuspid annular plane systolic excursion (TAPSE). Methods： TA Sa and TAPSE of 66 RHD patients were measured and compared before and after valve replacement operation. Results： TA Sa and TAPSE were significantly increased after valve replacement operation (P <0.05). Conclusion： Although TA Sa and TAPSE has certain limitations in the evaluation of the right ventricle function ......