应变率成像评价陈旧性心肌梗死患者左心房收缩功能  

Ultrasound evaluation of left atrial function in patients with old myocardial infarction by strain rate imaging

作　　者：尹家保 郭瑞强[2] 胡伟[2] 陈金玲[2] 周青[2] 

机构地区：[1]湖北省襄樊市第一人民医院超声科,441000 [2]武汉大学人民医院超声科

出　　处：《中华超声影像学杂志》2009年第4期302-304,共3页Chinese Journal of Ultrasonography

摘　　要：目的探讨应变率成像评价陈旧性心肌梗死患者左心房收缩功能的价值。方法对30例陈旧性心肌梗死患者（心梗组）和25例正常人（对照组），应用应变率成像测量左心房侧壁及房间隔心肌运动速度；分析心梗组与对照组心房侧壁及房间隔收缩功能的改变。结果①与对照组相比，心梗组左心房心肌运动速度在心室收缩期和心室舒张早期减低，而在心室舒张晚期增高，差异有统计学意义（P〈0．05）。②与对照组相比，心梗组左房被动射血量指数减少，主动射血量指数增加，差异有统计学意义（P〈0．001）。结论应变率成像可以准确评价陈旧性心肌梗死患者左房功能。Objective To evaluate the changes of the left atrial function in patients with old myocardial infarction（OMI） by strain rate imaging（SRI）. Methods The velocity of the left atrial lateral wall and atrial septum was measured by SRI in 30 patients with OMI（OMI group） and 25 normal subjects （control group）. Left atrium passive eject volume index（LAPEVI） and left atium active eject volume index （LAAEVI） were measured using Simpson method. Results ① Compared with the control group, the velocity of the left atrium was reduced obviously in ventricular systole and early ventricular diastole in OMI group（ P 〈0.05） ,but was increased in late ventricular diastole（ P 〈0.05）.②Compared with the controls, LAAEVI was increased significantly in OMI group, but LAPEVI was decreased signicantly（ P〈0. 001 ）. Conclusions SRI could be used to evaluate the left atrial function accurately in patiens with OMI

关 键 词：超声心动描记术 心肌梗死 心房功能  左 应变率成像 

分 类 号：R686[医药卫生—骨科学]