Prediction and assessment of left ventricular function improvement of acute myocardial infarction after percutaneous coronary intervention by two-dimensional speckle tracking imaging
10.3760/cma.j.issn.1004-4477.2012.09.005
- VernacularTitle:二维斑点追踪技术预测急性心肌梗死患者介入治疗后左心室功能改善程度
- Author:
Bo HU
;
Ruiqiang GUO
;
Qing ZHOU
;
Jinling CHEN
;
Jia HUANG
;
Sheng CAO
;
Qing DENG
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Myocardial infarction;
Angioplasty,transluminal,percutaneous coronary;
Speckle tracking imaging
- From:
Chinese Journal of Ultrasonography
2012;21(9):751-756
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess the left ventricular function of patients with acute myocardial infarction (AMI) treated by percutaneous coronary intervention (PCI) by speckle tracking imaging (STI).Methods 75 AMI patients who had AMI for the first time and have been treated by primary PCI were enrolled.Dynamic images were acquired before PCI,at 6 months after PCI and analyzed by STI.Dynamic images were analyzed for longitudinal peak systolic strain (LPSS),radial peak systolic strain (RPSS) and circumferential peak systolic strain (CPSS) values by STI.According to the comparison of left ventricular ejection fraction (LVEF) before PCI and 6 months after PCI,patients were divided into left ventricular function improved group (△LVEF≥5％) and not-improved group.Results Compared to non-improved group,LPSS (P ＜0.001),RPSS (P ＜0.05,P ＜0.001) and CPSS (P ＜0.001) of improved group were all higher before and 6 months after PCI.LPSS (r =-0.578,P ＜0.001) and CPSS (r =-0.817,P ＜0.001) before PCI were both closely related to △LVEF.In single parameter mode of ROC curve analysis,the area under the ROC curve (AUC) (0.867),sensitivity (94.7％) and specificity (74.4％) of CPSS are relatively higher than other STI parameters.In multiple parameters united mode of ROC curve analysis,AUC (0.897),sensitivity (94.7％) and specificity (74.4％) of LPSS,RPSS and CPSS united were the highest among all the combinations of all STI parameters.Conclusions Left ventricular function improvement of patients with AMI 6 months after PCI is accurately assessed and predicted by STI.CPSS is a strong predictor for left ventricular function improvement 6 months after PCI of AMI patients among all the STI parameters and is an effective indicator for the assessment of left ventricular function improvement of AMI patients.
