TDI-Tei指数评价肺动脉高压患者右心室功能的研究

The Study of Right Ventricular Function in Patients with Pulmonary Hypertension by TDI-Tei Index

目的探讨应用脉冲组织多普勒(PW-TDI)测量Tei指数评价肺动脉高压患者右心室功能的临床价值。方法测量90例肺动脉高压患者二维超声指标右心房(RA)横径、右心室(RV)横径,同时记录三尖瓣环的PW-TDI频谱图,测量相关时间间期,并计算出右心室Tei指数。另选取30例健康成年人为对照组。结果Ⅲ、Ⅱ组肺动脉高压患者二维超声测量指标较正常对照组明显增大,差异有统计学意义(P<0.01或P<0.05);Ⅰ、Ⅱ、Ⅲ组肺动脉高压患者所测Tei指数较正常对照组增高,差异有统计学意义(P<0.05或P<0.01)。结论采用PW-TDI方法测量右心室Tei指数可以敏感的反映肺动脉高压患者右心室功能的变化,是评价其右心室整体功能的较好指标。

Objective To evaluate the pulse tissue Doppler （PW-TDI） measurement of Tei index in right ventricular function in patients with pulmonary hypertension clinical value. Method Measure 90 patients with pulmonary hypertension measured two-dimensional echocardiography in patients with right atrial （RA） diameters, right ventricular （RV） diameter,while recording the PW TDI tricuspid ring spectrum, measuring the relevant time interval, and calculate the right ventricular Tei index. Another 30 healthy adults selected for the control group. Results Ⅲ, Ⅱ group of patients with pulmonary hypertension measure two-dimensional ultrasound significantly increased compared with the control group, the difference was significant （P〈0. 01 or P〈0.05）; Ⅰ , Ⅱ ,Ⅲ group of patients with pulmonary hypertension measured by Tei index increased significantly （P〈0.05 or P〈0.01）. Conclusions PW-TDI method of measuring right ventricular Tel index can reflect the sensitivity of right ventrieular function in patients with pulmonary hypertension changes in the right ventricle to assess the overall function of the better indicators.