Evaluation of left ventricular regional systolic function before and after coronary artery bypass graft in patients with coronary artery disease using strain rate imaging
- VernacularTitle:应变率成像对冠心病冠状动脉搭桥手术前后左心室局部收缩功能的评价
- Author:
Jiawei TIAN
;
Min REN
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Coronary artery bypass,off-pump;
Ventricular function,left;
Strain rate imaging
- From:
Chinese Journal of Ultrasonography
1997;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate left ventricular regional systolic myocardial function quantitatively before and after coronary artery bypass graft(CABG) in patients with coronary artery disease(CAD) by strain rate imaging(SRI),and determine the effect of CABG.The diagnostic value of two-dimensional echocardiography(2-DE) method and SRI parameter method was compared.Methods The values of systolic strain rate(SRs) at 9 segments supplied by left anteior descending were measured in study group(20 patients with CAD) at 1 d before and 10 d,1 month,3 months and 6 months after CABG.The regional myocardial function befose CABG was analyzed and compared with that of controls,and abnormal segments were found.Then the values of these abnormal segments before and after CABG were compared.Results In control group,SRs displayed a wide and negative peak and was homogeneous in every segments.The SRs peak values decreased,and the homogeneity disappeared in study group.Beginning from 1 month after CABG,the SRs peak values at the graft segments increased in varying degrees,and there was significant difference at basal segments of anterior wall,middle segments of anteroseptal,and middle segments of posteroseptal in the different periods(P
