Value of three-dimensional speckle tracking imaging for quantitative assessment of global left ventricular systolic function in patients with coronary heart disease
10.3760/cma.j.issn.1004-4477.2015.01.001
- VernacularTitle:三维斑点追踪成像定量评价不同狭窄程度冠心病患者左心室收缩功能的应用价值
- Author:
Jiani LIU
;
Jiasheng LIU
;
Wenjuan BAI
;
Xin WEI
;
Fang WANG
;
Hong TANG
- Publication Type:Journal Article
- Keywords:
Echocardiography,three-dimensional;
Coronary stenosis;
Ventriular function,left;
Three-dimensional speckle tracking imaging
- From:
Chinese Journal of Ultrasonography
2015;24(1):1-5
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the accuracy of three dimensional speckle tracking imaging (3D-STI) in quantitative coronary evaluation of (CHD) patients' left ventricular global systolic function.Methods Sixty-eight CHD patients were divided into three groups according to the coronary artery angiography (CAG) results:32 cases in severe stenosis group,23 cases in moderate stenosis group,and 13 cases in mild stenosis group.Thirty gender-age-matched healthy subjects(control group) were enrolled in this study.All patients underwent 2D-echocardiography and real-time three-dimensional echocardiography (3DE).The global longitudinal strain(GLS),global radial strain(GRS),global circumferential strain(GCS),global area strain (GAS),global area strain rate (GASrate) and 3D global LV strain (3D-Strain) were analyzed using 3D-STI.Correlation between strain measurements and left ventricular ejection fraction (LVEF) by simpson method,3D-LVEF by 3DE were assessed using linear regression analysis.Results All 3D-STI parameters in the severe stenosis group were significant decreased compared with the other groups.GLS,GRS,GCS,GAS,3D-Strain of moderate stenosis group shown more significant decrease than both mild stenosis group and control group (P ＜ 0.05).Strong correlations were demonstrated in all 3D-STI parameters between 3D-LVEF and LVEF.The strongest correlation was observed between GAS with 3D-LVEF in severe stenosis group(r =-0.910,P ＜0.05).Intraobserver and interobserver reliability of GAS was better than other parameters.Conclusions Global strain of 3D-STI can quantitatively evaluate the global LV function in CHD patients,and GAS is more sensitive and reproducible than other parameters.
