应用心肌矢量应变力和应变率成像技术评价先天性心脏病患儿手术前后左室壁运动的变化  

Evaluation of perioperative changes of left ventricular motions in children with congenital heart disease by vector strain imaging

作　　者：李燕[1] 杨晓英[1] 王润兰[1] 梅丽[1] 

机构地区：[1]吉林大学第一医院超声科,吉林长春130021

出　　处：《中国临床医学影像杂志》2010年第4期247-250,共4页Journal of China Clinic Medical Imaging

基　　金：吉林省科技发展计划项目(NO.200705177)

摘　　要：目的:应用心肌矢量应变力和应变率成像技术(Vector strain imaging,VSI)探讨左向右分流型先天性心脏病(VSD,PDA)患儿手术前后左室壁运动的变化。方法:应用VSI对27例先天性心脏病患儿手术前(P组)、手术后1周内(A组)和对照组(N组)21例年龄相匹配的正常儿童左室壁16个节段的纵向、圆周方向、径向运动进行检测。结果:①P组患者左室壁径向运动速度(9节段/16节段)、圆周方向运动速度(3节段/16节段)、纵向运动速度(7节段/16节段)均高于N组,P<0.05,有统计学差异。②A组患者左室壁径向运动速度(5节段/16节段)、圆周方向运动速度(3节段/16节段)、纵向运动速度(2节段/16节段)均高于N组,P<0.05,有统计学差异。③A组患者左室壁径向运动速度(4节段/16节段)、纵向运动速度(9节段/16节段)较P组明显减低,P<0.05;A组与P组患者左室壁各节段圆周方向运动速度无明显差异,P>0.05。结论:左向右分流型先天性心脏病患儿术后1周内左室壁代偿性增强的运动有所降低,逐渐趋于正常,应用VSI可以从径向、圆周方向、纵向全面分析患儿手术前后左室壁运动的变化。Objective： Use vector strain imaging （VSI） to study the perioperative changes in children with congenital heart disease of left to right shunt, and discuss the efficiency and feasibility of VSI. Methods： Twenty-one healthy children（group N） and 27 children with congenital heart disease （including 16 with ventricular septal defects, 11 with patent ductus arteri- ousus） divided into group P （pre-operative） and group A （1 week after operation） were examined, then motion velocities of the 16 left ventricular wall segments in three directions （radial, length, circle） were calculated. Results： ①Comparing the motion velocity of group P with that of group N： group P velocities were higher than group N velocities （P〈0.05） in radial motion of segment 9/16, circle motion of segment 3/16, length motion of segment 7/16. ②Comparing the motion velocities of group A with that of group N： group A velocities were higher than group N velocities （P〈0.05） in radial motion of segment 5/16, circle motion of segment 3/16, length motion of segment 2/16. ③Comparing the motion velocity of group A with that of group P： group A velocities were much lower than group P velocities（P〈0.05）, including radial motion of segment 4/16, length motion of segment 9/16. Circle motion of B0 and B1 have no significant difference（P〉0.05）. Conclusion： In congenital heart disease with left to right shunt, motions of left ventricle are reduced to normal level regularly with the hemodynamics changes in the group of 1 week after operation. VSI is able to analyze perioperative changes of left ventricular wall motions in radial, circle, length directions.

关 键 词：心脏缺损 先天性 超声心动描记术 多普勒 彩色 

分 类 号：R541.1[医药卫生—心血管疾病] R540.45[医药卫生—内科学]