Correlation study of Myocardial strain imaging with angiographic findings in patients with chronic stable angina

Background: Global Longitudinal Strain (GLS) measured by 2D speckle-tracking strain echocardiography (2D-STE) can detect impaired longitudinal left ventricle (LV) function at rest which is associated with significant coronary artery stenosis. Objective: may be used to predict the presence, extent and severity of CAD according angiographic findings in patients chronic stable angina. Methods: 2D-STE angiography were performed on 100 individuals suspected angina pectoris who had normal resting conventional echocardiography. assessed correlated for each patient. Results: Statistically difference was found when comparing mean GLS among coronaries different degrees disease (CAD).Mean – 20.76±1.39, -17.66±0.65, - 16.05±0.58 -14.22±0.65 normal/minor, single vessel, two vessels three respectively(p<0.001). Patients main (LM) stenosis 14.41±1.27 compared 17.1±1.91in without LM (p=<0.001). In our study cutoff value detection vessel -18.300 good sensitivity specificity (100% 96.6%, respectively) AUC (Area Under Curve) 0.996 p value< 0.001.