Fig. 1From: Role of great artery annulus ratio to predict transannular patch enlargement in repair of tetralogy of Fallota, b Receiver operating characteristic (ROC) and area under curve (AUC) for pulmonary valve annulus z-score and great artery annulus ratio (PVA/AVA), respectively. Sensitivity and specificity were calculated at different cut-off values. The AUC for great artery annulus ratio was higher than that of PVA z-scoreBack to article page