Fig. 4From: Which is more accurate measuring pulmonary artery resistance index or 4D lung volume for prediction of neonatal respiratory distress in preterm pregnancies?Receiver operating curve (ROC) of the A PA-RI, B LV, C PA-RI and LV and D Combined PA-RI and LV for showing cutoff value predicting neonatal respiratory distress syndrome (RDS)Back to article page