斑点追踪技术对心肌梗死患者左室短轴二维应变的研究
Left ventricle short axis two-dimensional strain base on speckle tracking imaging infarcted myocardial deformation
刘娟丽 1李尔萃 1张红梅 1高芬2
作者信息
- 1. 青海大学医学院临床医学系,青海西宁810001
- 2. 青海大学医学院临床医学系,青海西宁810001;青海大学附属医院呼吸内科,青海西宁810001
- 折叠
摘要
目的:采用超声心动图斑点追踪成像(STI)技术对心肌梗夕匕患者左室短轴节段不同形式的运动进行分析,评价其左室功能.方法:应用STI技术分析心肌梗死患者左室短轴基底段及心尖段心室节段径向应变(RS)、圆周方向应变(CS).根据心肌梗死后左室射血分数(LVEF)下降的程度,分析RS、CS变化.结果:心肌梗死后梗死段RS值较正常组减低、CS值较正常组增高.结论:STI能够评价左室短轴各个方向运动,心肌梗死后梗死段短轴各方向应变减低.
Abstract
AIM:To assess the left ventricle short axis strain changes of myocardium infarction in different directions base on speckle tracking imaging(STI).METHODS:Myocardium infarction left ventricle short axis base direction and tip of heart ventricle direction Radial strain(RS),circumferential strain(CS)were detected based on STI.Accroding to the decline level of myocardium infarction left ventriclee jection fraction,the changes of RS and CS were analyzed.RESULTS:Infarcted myocardium infarcted direction RS value are lower than normal value,CS valne were higher than normal values.CONCLUSION:STI enables accurate analysis of regional systolic function by frame-by-frame tracking high intensity dots in two-dimensional echocardiographic images.
关键词
超声心动图/心肌梗死/左室短轴二维应变/左室射血分数Key words
speckle tracking imaging imaging eehocardiography/myocardium infarction/left ventricleshort axis two-dimensional strain/left ventriclee jection fraction引用本文复制引用
出版年
2009
NETL
NSTL
维普
万方数据