Study Of Left Ventricular Function And Myocardial Perfusion Prior And Post To Coronary Artery Bypass Grafting Surgery By Echocardiography

Objective To evaluate global and regional cardiac function and myocardial perfusion shift before and after Coronary Artery Bypass Grafting (CABG) through several newly developed echo imaging techniques, and, thus, to establish ultrasonic parameters for myocardial viability assessment. Methods Global and regional left ventricular function and myocardial perfusion of 34 patients underwent CABG surgery were studied with Tei index, acoustic quantification, color kinesis and myocardial contrast echocardiography. Results Combined use of these new techniques could determine global and regional function and perfusion prior and post to CABG, with SI or DI> 30% and B>0.5 providing preferable accuracy. Conclusion With these new techniques, left ventricular function and perfusion of patients before and after CABG can be evaluated comprehensively and helpful information on myocardial viability and surgery efficacy can be acquired.