组织多普勒Tei指数评价不同程度冠状动脉狭窄患者的左室功能  

Estimation of Global Left Ventricular Function by Tei Index Measured via Tissue Doppler Imaging in Patients with Coronary Artery Stenosis

作　　者：黄灿亮[1] 边波[1] 万征[1] 李华[1] 周贵明[1] 杜鑫[1] 袁文利[1] 徐仰红[1] 

机构地区：[1]天津医科大学总医院心内科,300052

出　　处：《天津医药》2007年第12期903-905,共3页Tianjin Medical Journal

摘　　要：目的:应用组织多普勒Tei指数(TDI-Tei)评价冠状动脉(冠脉)不同狭窄程度对左室总体心功能的影响。方法:无心肌梗死病史并接受冠脉造影(CAG)患者70例,根据CAG分为3组:A组30例,冠脉狭窄<50%;B组20例,冠脉狭窄在50%～69%之间;C组20例,冠脉狭窄≥70%。分别应用组织多普勒(TDI)和脉冲多普勒(PW)检测Tei指数。比较二尖瓣环3个不同部位TDI-Tei之间差异及与脉冲多普勒Tei指数(PW-Tei)的相关性。结果:平均TDI-Tei在A组、B组和C组依次为0.44±0.06,0.46±0.06,0.53±0.07,其中C组显著高于A组和B组(均P<0.05),B组与A组间差异无统计学意义(P>0.05)。3个不同取样部位TDI-Tei均与PW-Tei显著相关(均P<0.05)。结论:TDI-Tei可检测出冠脉高度狭窄引起的左心总体功能障碍,具有较高敏感性及特异性。Objective： To determine the value of tissue Doppler imaging （TDI） -Tei in evaluating left ventricular cardiac function in patients with different grades of coronary artery stenosis. Methods： Seventy patients receiving coronary angiography （CAG） were divided into 3 groups, patients with coronary artery stenosis 〈 50%（group A, n=30）, patients with coronary artery stenosis 50%-69%（group B,n=20） and patients with coronary artery stenosis ≥70%（group C,n=20）. All patients received uhrasonic cardiograph （UCG） and their TDI-Tei and pulsed-wave Doppler tissue imaging （PW-Tei） indexes were examined. The relationship between TDI-Tei and PW-Tei and the differences of TDI-Tei among 3 different sample locations were evaluated. Results： The values of TDI-Toi were significantly higher in group C. There was no significant difference between group A and B. There were significant correlations between TDI-Tei and PW-Tei in 3 different sample locations （P 〈 0.05,respectively）. Conclusion： TDI-Tei can reflect the impairment of global left ventricular cardiac function in patients with severe coronary artery stenosis.

关 键 词：冠状动脉狭窄 超声心动描记术 多普勒 脉冲 二尖瓣 心室功能 左 

分 类 号：R540.45[医药卫生—心血管疾病]