Figure 6
From: Coronary artery occlusions diagnosed by transthoracic Doppler
ROC curve for anterograde peak diastolic flow velocities in septal perforators in diagnosing contralateral coronary occlusion. Receiver operating characteristic (ROC) curve for anterograde peak diastolic flow velocities (pDV) in septal perforating branches in the diagnosis of occlusion in the contralateral, collateral-receiving main coronary artery, with optimal pDV ≥ 0.57 m/sec (sensitivity 79%, specificity 69%). AUC = area under the curve, CI = confidence interval, DS = diameter stenosis.