Fig. 4

Utility of right ventricular (RV) direct flow and RV ejection fraction (RVEF) to detect (A) moderate to severe RV remodelling (RVEDV/LVEDV ratio > 1.41) (B) exercise capacity with intermediate and high risks (% predicted peak VO₂ < 65%). AUC area under ROC curve, EDV end-diastolic volume, ROC receiver operating characteristic, LV left ventricle, LVEDV left ventricular end-diastolic volume, RVEDV right ventricular end-diastolic volume, VO₂ oxygen uptake