速度向量成像技术评价川崎病冠状动脉瘤左心室收缩功能  

Evaluation of left ventricular systolic function in Kawasaki disease with coronary aneurysms using velocity vector imaging

作　　者：葛艳[1] 黄美蓉[1] 张世科[1] 

机构地区：[1]福建医科大学附属厦门第一医院超声科,361003

出　　处：《中华医学超声杂志（电子版）》2009年第5期39-41,共3页Chinese Journal of Medical Ultrasound(Electronic Edition)

摘　　要：目的探讨速度向量成像技术在川崎病冠状动脉瘤患儿左心室收缩功能检测中的应用价值。方法根据冠状动脉瘤大小将33例川崎病冠状动脉瘤患儿分为病变Ⅰ组、Ⅱ组,分别与20例正常儿童左心室收缩功能参数对照,应用速度向量成像技术测量左心室最大纵向运动速度、应变、应变率;采用Simpson法心内膜自动跟踪测量左心室射血分数、每搏量。结果病变Ⅰ组23例各节段左心室最大纵向运动速度、应变率均明显低于对照组(P<0.05),病变Ⅱ组10例各节段最大纵向运动速度、应变及应变率均明显低于Ⅰ组(P<0.05);组间左心室射血分数、每搏量差异均无统计学意义。结论川崎病冠状动脉瘤患儿左心室心肌收缩功能受损,速度向量成像技术检测的左心室最大纵向运动速度、应变率可以反映心肌局部收缩功能异常。Objective To explore the value of velocity vector imaging （VVI） in detecting left ven- tricular systolic function in Kawasaki disease （KD） with coronary aneurysms. Methods Thirty three children with KD coronary aneurysms were classified into two groups （GⅠ＆ GⅡ） according to their size of lesions and twenty healthy subjects were selected as the control group. The left ventricular longitudinal systolic peak velocities （Vs） , systolic peak stain（ε） and systolic peak stain rate （SRs） of each segment were analysed by VVI. The left ventricular ejection fraction （EF） and stroke volume （SV） were measured by Simpson method of automatic tracking endocrinal. Results Vs and SRs of GⅠ were significantly lower （P〈0.05） than those of the control group, and Vs, SRs and e of GⅡ were lower （P 〈 0.05） than those of GⅠ. There was no significant difference in EF, SV among three groups. Conclusions The VVI was a useful method which can detect impaired region of left ventricular systolic function in KD with coronary aneurysms.

关 键 词：超声心动描记术 黏膜皮肤淋巴结综合征 冠状动脉瘤 左心室功能 

分 类 号：R725.4[医药卫生—儿科]