应用M-型超声定量分析二尖瓣环运动速度与位移指标评价高血压病患者左室舒张功能的临床研究  

M-mode Quantitative Analysis of Mitral Annular Velocities and Amplitude Displacement for Evaluation of Left Diastolic Function in Patients with Hypertension

作　　者：成艳[1] 叶争渡[1] 王洪霞[1] 

机构地区：[1]浙江大学医学院附属第一医院超声科,杭州市310003

出　　处：《中国超声医学杂志》2007年第8期584-586,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：目的应用M-型超声定量分析与比较高血压病患者二尖瓣环长轴方向上运动速度与位移的变化,探讨其评价左室舒张功能的价值。方法高血压病患者30例,根据二尖瓣口血流频谱(E/A)分为两组:组E/A<1,12例,组E/A>1,18例;正常对照组10例。应用TVI测量二尖瓣环舒张早期(Ea)、舒张晚期(Aa)运动速率及其比值Ea/Aa。应用M-型超声测量二尖瓣环舒张早期(Es)、舒张晚期(As)峰值运动速度及其比值(Es/As);舒张早期(T)、舒张晚期(A)峰值位移及其比值(T/A)。结果与对照组比较,高血压病组和组的Es、Es/As、T、T/A显著减低(P<0.05或P<0.01)。T与Ea、T/A与Ea/Aa、Es与Ea、Es/As与Ea/Aa显著相关(P<0.05)。结论M-型超声所测的二尖瓣环运动速度与位移指标能反映高血压病患者左室舒张功能的异常。Objective To detect and to compare the longitudinal mitral annular velocities and amplitude changes using M-mode in patients with hypertension, and to explore the value for evaluation of left ventricular diastolic dysfunction. Methods Thirty patients with hypertension were divided into two groups according to the ratio E/A of mitral valve inflow.- group Ⅰ , E/A〈 1 （n = 12）, group Ⅱ , E/A〉 1 （n=18） and another 10 normal volunteers accepted tissue velocity imaging （TVI） and M-mode examination. Peak early （Ea） and late （Aa） diastolic velocities and their ratio （Ea/Aa）, Peak early （Es） and late （As） diastolic velocities and their ratio （Es/As）, peak early （T） and late （A） diastolic amplitude displacement and their ratio （T/A） were measured and calculated. Results Compared with the control group, Es, Es/As, T, T/A were significantly lower in both groups Ⅰ and （P〈0. 05 or P〈0.01） . T and Ea, T/A and Ea/Aa, Es and Ea, Es/As and Ea/Aa were correlated significantly （all P〈0.05） . Conclusions Es, Es/As, T, T/A measured with M-mode are promising indices for the quantitative assessment of left ventricular diastolic dysfunction in patients with hypertension.

关 键 词：超声心动描记术 高血压 二尖瓣 左室舒张功能 

分 类 号：R445.1[医药卫生—影像医学与核医学]