Fig. 4
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12968-015-0184-3/MediaObjects/12968_2015_184_Fig4_HTML.gif)
Receiver Operating Characteristics (ROC) curves of pulmonary artery to ascending aorta (PA:Ao) ratio, pulmonary artery (PA) diameter, septomarginal trabeculation (SMT) diameter and right ventricular free wall thickness (RVFW) with Areas Under the Curve of 0.759, 0.741, 0.652 and 0.576, respectively