速度向量成像技术评价左室型单心室径向收缩功能  

Evaluation of radial systolic function of single left ventricles using velocity vector imaging

作　　者：赵艳君 张玉奇[1] 张志芳[1] 陈丽君[1] 钟舒文 

机构地区：[1]上海交通大学医学院附属上海儿童医学中心心内科,上海200127

出　　处：《医学影像学杂志》2012年第1期31-34,共4页Journal of Medical Imaging

基　　金：上海市科委医学引导类项目(编号:10411965300);上海市卫生局科研项目(编号:2008023);上海交通大学医学院科技基金项目(编号:YZ1045);2010年上海交通大学医学院附属上海儿童医学中心院基金

摘　　要：目的:观察左室型单心室径向运动情况,评价速度向量成像技术(velocity vector imaging,VVI)估测左室型单心室患儿心室径向收缩功能的价值。方法:左室型单心室患儿21例(单心室组)及正常儿童21例(对照组)为研究对象,应用VVI技术对主心腔短轴乳头肌水平室壁径向应变及应变率进行分析。结果:单心室组各节段的径向应变及应变率较对照组相应节段明显减低,两组间差异具有统计学意义(P<0.05)。对照组乳头肌水平径向收缩。期峰值应变及应变率差异无统计学意义(P>0.05)。结论:左室型单心室患儿存在径向收缩功能不全,VVI技术能定量评价左室型单心室节段室壁的径向收缩能力。Objective：To investigate the radial systolic function of children with single-left ventricle（LV）,and to appraise the clinical value of velocity vector imaging（VVI） on assessing it.Methods：The study group consisted of 21 patients with single-LV.The control group consisited of 21 age-matched normal children.VVI was used to analyse the radial strain and strain rate of regional single-LV at the level of papillary muscle.Results：Single-LV radial strain values were significantly lower in all segments compared with values in control（P0.05）.In normal patients,radial strain and strain rate of papillary muscle level showed no significantly difference（P0.05）.Conclusion：Radial systolic ventricular function is impaired in children with single-LV.VVI can be used as a quantitative tool in evaluating the radial systolic function of single-LV.

关 键 词：单心室 心室功能 速度向量成像 超声心动描记术 

分 类 号：R541.1[医药卫生—心血管疾病] R445.1[医药卫生—内科学]