二维斑点追踪显像技术定量评价正常成年人左心室心肌分层应变  

Quantitative analysis of left ventricular layer-specific strain using speckle tracking imaging in normal subjects

作　　者：史静[1] 潘翠珍[1] 舒先红[1] 陈海燕[1] 孔德红[1] 

机构地区：[1]复旦大学附属中山医院心内科、上海市心血管病研究所、上海市影像医学研究所,上海200032

出　　处：《中华超声影像学杂志》2015年第5期378-381,共4页Chinese Journal of Ultrasonography

基　　金：上海市科委基金（14411962500）;复旦大学附属中山医院青年基金（2014ZSQN50）;上海市科委医学引导项目（124119a7702）

摘　　要：目的运用二维斑点追踪显像技术定量分析我国成年人左室分层应变的正常值范围，各层各节段间的差异以及与性别和年龄的关系。方法应用GEVividE9超声仪及EchoPAC BTl2工作站对119例正常成年人左室分层应变进行定量分析。结果左室整体纵向应变自心内膜至心外膜逐层递减，左室整体周向应变自心内膜至心外膜逐层递减。左心室心内膜、中层心肌、心外膜纵向应变基底段、中间段、心尖段依次递增，左心室心内膜、中层心肌、心外膜周向应变基底段、中间段、心尖段依次递增。年龄和性别对左室分层应变的影响不大。结论二维斑点追踪显像可以定量分析正常成年人的左室各层应变，为临床评价心脏功能提供了又一有效方法。Objective To quantitatively evaluate left ventricular layer-specific strain using speckle tracking imaging,and their relationship with age and gender in nornal subjects. Methods GE Vivid E9 equipment with EchoPAC BT12 workstation were used. One hundred and nineteen healthy subjects were enrolled in this study. Results Left ventricular global longitudinal and circumferential strain was highest in the endocardium and lowest in the epicardium. Longitudinal and circumferential 3-layer strain was highest in the apex and lowest in the base. Age and gender had little influence on the left ventricular layer-specific strain. Conclusions Speckle tracking imaging can quantitatively assess left ventricular layer-specific strain, providing another useful modality for evaluating cardiac function.

关 键 词：超声心动描记术 心室功能 左 应变 

分 类 号：R540.45[医药卫生—心血管疾病]