摘要
利用斑点追踪技术得出的纵向应变(LS)可发现射血分数下降前心肌收缩功能微小变化,在预测主动脉瓣狭窄(AS)患者主动脉瓣置换术(AVR)后死亡率及症状发展方面具有重要应用价值。本文针对应用LS评估AS患者AVR后心肌功能现状进行综述。
Longitudinal strain(LS)acquired by speckle tracking echocardiography can detect subtle changes of myocardial systolic function prior to left ventricular ejection fraction,which is clinically useful in predicting mortality and symptom development in patients with aortic stenosis(AS)after aortic valve replacement(AVR).The status of LS in assessing myocardial mechanics in severe AS patients undergoing AVR were reviewed in this article.
作者
李茜
唐红
LI Xi;TANG Hong(Department of Cardiovascular Medicine,West China Hospital of Sichuan University,Chengdu 610041,China)
出处
《中国医学影像技术》
CSCD
北大核心
2020年第4期499-502,共4页
Chinese Journal of Medical Imaging Technology
关键词
主动脉瓣狭窄
心室功能
心脏瓣膜假体植入
aortic valve stenosis
ventricular function
heart valve prosthesis implantation