Assessment of global systolic function of left ventricle in patients with myocardial infarction by two-dimensional speckle tracking imaging

VernacularTitle:超声斑点追踪显像评价心肌梗死患者左心室整体收缩功能的研究
Author: Xin LIU ; Jianhua WANG
Publication Type:Journal Article
Keywords: Echocardiography; Myocardial infarction; Ventricular function,left; Mitral annulus displacement
From: Chinese Journal of Ultrasonography 2011;20(9):752-754
CountryChina
Language:Chinese
Abstract: Objective To evaluate the global contractile function of the left ventricle (LV) by speckle tracking imaging (STI) in patients with myocardial infarction (MI), in order to determine the feasibility of evaluation of LV funtion with mitral annular displacement (MAD).Methods The systolis parameters including longitudinal strain (GLs) ,circumferential strain (GCs) and MAD were obtained using STI and LV ejection fraction (LVEF) was acquired by three-dimensional echocardiography in control group and MI group,and the correlation between these parameters and LVEF was analyzed respectively.Results The parameters in MI group were significantly lower than those in the control group(P ＜0.01).GLs was the independent predictors of LVEF in control group and MI group.A good correlation was showed between MADin control group and MI group (r = 0.84, P ＜0.01 and r = 0.87, P ＜0.01, respectively).Conclusions MAD may be a promising modality to evaluate the global systolic function of LV in patients with MI for clinical routine practice.