斑点追踪显像对心尖肥厚型心肌病左室功能的评价分析  

Evaluation of Left Ventricular Function in Patients with Apex-hypertrophy Using Speckle Tracking Imaging

作　　者：王春梅[1] 唐琪[1] 穆玉明[1] 李艳红[1] 

机构地区：[1]新疆医科大学第一附属医院超声医学中心心脏超声科,新疆乌鲁木齐830011

出　　处：《中国全科医学》2011年第20期2308-2310,共3页Chinese General Practice

摘　　要：目的探讨斑点追踪显像评价心尖肥厚型心肌病左室收缩功能的改变。方法记录18例心尖肥厚型心肌病患者(HCM组)和20例健康对照者(对照组),获取二维灰阶图像,分析各个心肌节段收缩期峰值的纵向应变(SL)、径向应变(SR)和周向应变(SC)。结果 HCM组心肌整体SL、SR及SC收缩期峰值应变均明显低于对照组(P<0.05)。HCM组所有节段的收缩期峰值SL均明显低于对照组;与对照组相比,左房室瓣及乳头肌水平大多数节段的SR降低,左房室瓣及乳头肌水平个别节段的SC降低,心尖水平所有节段的SC及SR均明显降低(P<0.05)。结论 HCM患者左室长轴和短轴收缩功能均降低,以长轴功能减弱明显,局部心肌SL、SR及SC的变化可反映心肌的功能改变。Objective To evaluate the left ventricular function in patients with apex-hypertrophy using speckle tracking imaging.Methods A total of 18 patinents with apex-hypertrophy（HCM） and 20 normal controls were enrolled in this study.Images of apacial 4-chamber,2-chamber and ventricular short-axises（anular,papillary-muscle,apex） were obtained;the peak-systolic longitudinal strain（SL）,circumfrencial strain（SC） and radial strain（SR） of all segments were analyzed.Results SL,SC,and SR of all segments in the HCM group were lower than those in normal controls（P0.05）.Compared with normal controls,SL was lower in all segments in HCM group.SR was lower in most segments in the angular and the papillary-muscle views;SC was lower in several segments in the angular and the papillary-muscle views.Conclusion The longitudinal and radial systolic function among HCM patients is decreased,especially for the longitudinal systolic function.Changes of regional SL,SR and SC are promising indices that reflect these changes.

关 键 词：心肌病 肥厚型 斑点追踪显像 

分 类 号：R542.2[医药卫生—心血管疾病]