彩色室壁运动技术测定二尖瓣瓣环位移评价左室收缩功能  

Assessment of Mitral Annular Displacement by Color Kinesis to Evaluate Left Ventricular Systolic Function

作　　者：穆玉明[1] 马丽[1] 王春梅[1] 关丽娜[1] 唐琪[1] 

机构地区：[1]新疆医科大学第一附属医院超声医学中心心脏超声诊断科,乌鲁木齐市830054

出　　处：《中国超声医学杂志》2009年第10期951-954,共4页Chinese Journal of Ultrasound in Medicine

摘　　要：目的应用彩色室壁运动(CK)技术测定二尖瓣瓣环的位移,定量评价左心室收缩功能。方法应用彩色室壁运动技术(CK)检测26例健康对照组(Con组)和25例扩张型心肌病组(DCM组)心尖四腔观及两腔观二尖瓣环各壁的位移,并用Simpsons法测定左室射血分数。结果Con组CK图像由心底向心尖部依次显示橙→黄→绿→青→蓝相交替,均匀分布,DCM组则彩带明显变窄或彩带颜色显示不完整;CK测量的DCM组二尖瓣环各壁收缩期位移较Con组明显降低(P<0.01),且均与左室射血分数之间有高度相关(r=0.81～0.87,P<0.01)。结论CK技术测定二尖瓣瓣环位移可作为一种简单、快速和无创性评价左室收缩功能的新方法。Objective To evaluate the function of color kinesis in the assessment of left ventricular systolic ability through determination of the systolic mitral annular displacement （MAD） . Methods Displacement of mitral annulus from apical four-chamber view and two-chamber view was obtained in 25 cases of dilated cardiomyopathy （DCM） group and 26 cases of healthy control group by color kinesis （CK） . LVEF of all patients were determined by 2D echocardiography using Simpson＇s rule. Results The healthy control group CK image from the bottom of heart to the apex in turn demonstrates the orange→yellow→green→blue→blue, evenly distributing. In contrast the colored ribbon of the DCM group was significantly narrow or had ribbon color, which displays incompletely. There was a significant reduced systolic MAD in the dilated cardiomyopathy group compared with that in the control group （P〈0.01）. In all patients mean MAD measured by CK was correlated closely with the LV ejection fraction determined by 2D echocardio-graphy （r=0.81-0.87, P〈0.01） Conclusions MAD determined by color kinesis provides a simple, rapid and noninvasive tool for assessment of global LV systolic function.

关 键 词：彩色室壁运动 二尖瓣瓣环的位移 左室收缩功能 

分 类 号：R445.1[医药卫生—影像医学与核医学]