应用实时三维斑点追踪技术评价肥厚型心肌病左室整体和局部的收缩功能  

Evaluation of Left Ventricular Global and Regional Systolic Function in Patients with Hypertrophic Cardiomyopathy by the Real Time 3-Dimensional Speckle Tracing Imaging

作　　者：曾乐凤[1] 黄品同[1] 游向东[1] 申屠伟慧[1] 丁延华[1] 

机构地区：[1]浙江大学医学院附属第二医院超声诊断科,杭州市310000

出　　处：《中国超声医学杂志》2013年第10期893-897,共5页Chinese Journal of Ultrasound in Medicine

摘　　要：目的应用实时三维斑点追踪技术测量肥厚型心肌病左室整体和局部心肌应变特征,以评价其收缩功能。方法应用实时三维斑点追踪技术测量20例肥厚型心肌病患者和22例正常对照组的左室心肌整体及各节段纵向、圆周向、径向及面积峰值应变值,并进行比较。结果与正常组比较,病例组左室心肌整体及各节段应变值均小于正常对照组,其中病例组整体长轴应变(P<0.01)、径向应变(P<0.05)、面积应变(P<0.01)差异有统计学意义;病例组心肌室间隔、前壁及下壁中间段及心尖段各应变值降低,差异有统计学意义(P<0.01或P<0.05)。结论实时三维斑点追踪应变为定量评价整体和局部心肌收缩功能提供了新的方法 。Objective To assess the left ventricular（LV） global and regional systolic function in hypertrophic cardiomyopathy （HCM） patients by exploring the characteristics of strain with the real time 3-Dimensional speckle tracing imaging（RT 3I^STI）. Methods Global and partial longitudinal, circumferential, radial and area strain of 20 HCM patients and 22 healthy people were measured by 3D-STI and compared. Results In the HCM patients, the global and partial strain of LV were lower than those in the healthy people. Meanwhile, global strain significantly de crease in the longitudinal strain （P〈0. 01）, radial strain （P〈0. 05）, area strain （P〈0. 01）. Partial strain significantly decreases in the septum, anterior, inferior at both mid cavity level and apical region（P〈0.01 or P〈0. 05）. Conclusions The real time 3-Dimensional speckle tracing imaging offers a novel way to assess the systolic function of HCM.

关 键 词：超声心动描记术 实时三维 应变 斑点追踪显像 左 心室功能 肥厚型心肌病 

分 类 号：R542.2[医药卫生—心血管疾病]