Quantitive analysis of regional left ventricular systolic function before and after PTCA by quantitative tissue velocity imaging
- VernacularTitle:定量组织速度成像技术检测经皮腔内冠状动脉成形术后左心室局部收缩功能应用探讨
- Author:
Yuhuan XIE
;
Qian HUANG
;
Binghua CHEN
;
Qingshan LIN
;
Wei ZHANG
- Publication Type:Journal Article
- Keywords:
Echocardiography,Doppler;
Ventricular function,left;
Angioplasty,transluminal,percutaneous coronary
- From:
Chinese Journal of Primary Medicine and Pharmacy
2008;15(2):194-195
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze regional left ventricular systolic function before and after percutaneous translumial coronary angioplasty(PTCA),quantitative tissue velocity imaging(QTVI)was used tO detect wall motion of left ventricule.Methods 20 patients with isolated left anterior descending coronary artery(LAD)stenosis(≥70%)and 16 normal control subjects were included in this study.QTVI was performed one day before PTCA+stent,a week and a month after successful PTCA+stent.Peak systolic myocardial velocity(Vs)were measured with QTVI at different wall segments(basal and medial segments).Results Before PTCA+stent,Vs of all segments assigned by LAD were significantly lower than those of corresponding segments in normal subjects(P＜0.01).After PTCA+stent,the above segments showed a significant improvement of Vs in a week and a month(P＜0.01).Conclusion QTVI can quantitively detect changes of myocardiac motion and real-time quantify regional left ventricular systolic function before and after PTCA.
