Layers-strain on assessing myocardial function in acute coronary syndrome patients after percutaneous coronary intervention / 中国医学影像技术

ABSTRACT

Objective: To explore the clinical value of longitudinal layers-strain technology for assessing myocardial function in acute coronary syndrome (ACS) patients after percutaneous coronary intervention (PCI). Methods: Twenty-five ACS patients who underwent successful PCI (PCI group) and 25 normal subjects (control group) were collected. M-mode echocardiography, biplane Simpson, tissue Doppler imaging and longitudinal layers-strain were used to analyze left ventricular function and myocardial function respectively in both groups. Results: Longitudinal layers strain and global longitudinal layers strain in PCI group decreased gradually from endocardium to epicardium, and all parameters reduced compared with those of control group (all P<0.05). The gradient of global longitudinal strain between endocardium and epicardium (△GLS) existed in both groups, while the absolute value of △GLS apparently reduced in PCI group compared with control group (P<0.05). Conclusion: Longitudinal strain decreased from endocardium to epicardium in ACS patients after PCI. Longitudinal layers-strain might be a sensitive index of myocardial and left ventricular dysfunction in ACS patients after PCI.