射血分数正常时心力衰竭左室节段心肌长轴收缩运动的研究  

Left Ventricular Regional Myocardial Longitudinal Systolic Dysfunctions in HFNEF

作　　者：胡敏[1] 江成璠[1] 王素霞[1] 孙晓霞[1] 张晓轩[1] 张胜[1] 冯芳芳[1] 

机构地区：[1]黄山市人民医院功能科,安徽省黄山市245000

出　　处：《中国超声医学杂志》2013年第1期33-35,共3页Chinese Journal of Ultrasound in Medicine

摘　　要：目的研究射血分数正常的心力衰竭(HFNEF)左室节段心肌长轴收缩运动。方法使用基于组织多普勒(TDI)的应变技术对比分析44例HFNEF患者(A组)和33例条件匹配的健康对照者(B组)左室节段心肌长轴方向应变指标的差异。结果 A组较B组应变峰值绝对值降低,达峰时间延长,发生收缩后收缩及收缩期反常伸展的节段增多(均P<0.01);达峰时间标准差增大(P=0.02)。结论 HFNEF左室节段心肌存在长轴收缩运动异常。Objective To investigate left ventricular （LV） regional myocardial longitudinal contractile function in HFNEF by TDI derived strain. Methods There were 44 HFNEF patients （group A） and 33 matched health controls （group B）, the TDI derived strain was used to analyze the longitudinal contractile function of LV segments which were obtained from four chamber, two chamber and long axis apical view. Results The group A＇s peak strain was lower, the timing to peak strain was longer, the postsystolic shortening＇s segments and the paradoxic systolic expansion＇s segments increased, all P〈0.01; the timing to peak strain＇s standard deviation of LV 18 segments was larger （P=0.02）, compared to the group B. Conclusions HFNEF existed LV regional myocardial longitudinal systolic dysfunctions.

关 键 词：射血分数正常的心力衰竭 超声心动描记术 组织多普勒成像 应变 

分 类 号：R445.1[医药卫生—影像医学与核医学]