Fig. 3

A ROC curve for Average E/e′. Receiver operating characteristic (ROC) curves to detect the diagnostic performance of E/e′ for predicting LVEDP more than 20 mmHg. Average E/e′ = the ratio between early mitral inflow velocity and average septal and lateral mitral annular early diastolic velocity. LVEDP, Left ventricular end-diastolic pressure; AUC, area under the curve; CI, confidence interval. AUC = 0.78 (% 95 CI 0.70–0.86), Cut point = 6.8; Sensitivity = 96.15%; Specificity = 67.5%; correctly classification = 78.7%. B ROC curve for lateral E/e′. Receiver operating characteristic (ROC) curves to detect lateral E/e′s diagnostic performance for predicting LVEDP more than 20 mmHg. Lateral E/e′ = the ratio between early mitral inflow velocity and lateral mitral annular early diastolic velocity. AUC = 0.76 (95% CI 0.68–0.84), Cut point = 6.2; Sensitivity = 75.47%; Specificity = 67.5%; Correctly classification = 70.68%)