摘要
目的:探讨二维斑点追踪技术评价扩张型心肌病患者再同步化治疗(CRT)后左心室整体纵向收缩功能变化的价值。方法:选取扩张型心肌病患者18例,分别于CRT术前1 d、术后1周行二维超声检查,应用二维应变软件分析左室心尖长轴面、心尖两腔及心尖四腔面的图像,获取各切面收缩期峰值整体应变(GSL)及左室整体纵向应变平均值(GSL-Avg),并观察收缩期纵向峰值应变(SLs)牛眼图。结果:与CRT术前比较,CRT术后左室整体GSL、GSL-Avg均显著提高,差异均有统计学意义(P<0.01)。CRT术前,SLs牛眼图显示大部分节段应变峰值较低,CRT术后有所改善。结论:二维斑点追踪技术可以定量、客观地评价左室局部及整体收缩功能变化。
Objective：To evaluate global left ventricular systolic function in patients who had received cardiac resynchronization therapy（CRT）by speckle tracking imaging（STI）. Method：18 patients who had received cardiac resynchronization therapy（CRT）were enrolled. Two-dimensional echocardiography was performed before CRT and CRT a week later.And the two-dimensional data were obtained in apical 4-chamble,2-chamle and long axis view. Global longitudinal systolic strain（GLS）and average global strain（GLS-Avg）were measured used STI,and the longitudinal peak systolic strain（SLs）bovine eye diagram was observed.Result：Compared with CRT preoperative,postoperative CRT left ventricular overall GSL,GSL-Avg were significantly improved,the differences had statistical significance（P〈0.01）. CRT preoperative,SLs bovine eye diagram showed the peak strain most segments were low,CRT had improved after surgery.Conclusion：STI can be used to objectively and quantitatively evaluate the change of regional and global left ventricular systolic function.
出处
《中国医学创新》
CAS
2014年第17期4-7,共4页
Medical Innovation of China
关键词
斑点追踪
心脏同步化治疗
运动同步性
左室
Speckle tracking imaging
Cardiac resynchronization therapy
Synchronicity
Left ventricular
