【摘要】 目的　对比观察M型与多普勒超声心动图对扩张型心肌病左心室TeiIndex的测量及临床应用价值。方法　对临床及超声心动图确诊的窦性心律扩张型心肌病 3 0例患者 ,分别采用M型及多普勒超声心动图测量左心室的心室功能并以健康体检者 3 0例作为对照组 ,分析两种超声心动图方法获得的左心室TelIndex的相关性以及其对扩张型心肌病诊断的特异性及敏感性。结果　 3 0例扩张型心肌病患者M型超声心动图测量TelIndex为 0 .80± 0 .3 1,对照组为 0 .3 0± 0 .0 7(P <0 .0 1)。多普勒超声心动图测量TelIndex为 0 .92± 0 .3 4,对照组为 0 .3 3± 0 .0 6(P <0 .0 1)。两者具有良好的相关性 (r =0 .783 ,P <0 .0 1)。以TelIndex≥ 0 .45为诊断扩张型心肌病的界限 ,通过M型取得的TelIndex对扩张型心肌病的诊断敏感度为 10 0 % ,特异度为 93 .8% ,而应用多普勒超声心动图取得的TelIndex对扩张型心肌病的诊断敏感度与特异度分别为 10 0 % ,93 .8%。结论　与多普勒超声心动图取得的TelIndex一样 ,通过M型超声心动图获得的TelIndex是一种简单可靠 ,无创评估左室功能的超声心动图指标 ,因此在扩张型心肌病患者的诊断与治疗中具有重要的临床应用价值更多还原

【Abstract】 Objective The study was to compare the Tei Index by Doppler echocardiography and M-Mode echocardiography in patients with dilated cardiomyopathy. Methods Thirty patients with dilated cardiomyopathy and 30 normal subjects were enrolled in the study. The Tei Indexes obtained from LV M-mode and mitral Doppler calculation were assessed.Results The value of Tei Index by M-mode echocardiography was 0.80±0.31 and the Tei Index by Doppler echocardiography was 0.92±0.34. They were significantly related (r=0.78,P<0.0001). Using Tei Index≥0.45 as a criteria, patients with dilated cardiomyopathy could be recognized by a sensitivity of 100% and a pecificity of 93.75% using Doppler mode, and 100% and 93.75% using M-Mode, respectively.Conclusion The Tei Index obtained by M-mode echocardiography is a simple and helpful index for evaluation cardiac dysfunction as same as that obtained by Doppler echocardiography.更多还原