Figure 1. Correlation with clinical events.
(A) Receiver-operating characteristic curve analysis revealed that 3DRVEF was superior to mPAP in predicting associated clinical events. (B) Event-free survival of patients with a mPAP ≧ 35 mmHg compared to patients with a mPAP < 35 mmHg in all subjects. (C) Event-free survival of patients with a 3DRVEF ≧ 38% compared to patients with a 3DRVEF < 38% in all subjects. (D) Event-free survival of patients with a 3DRVEF ≧ 28% compared to patients with a 3DRVEF < 28% in patients with severe PAH (mPAP > 35 mmHg). 3DRVEF = three-dimensional right ventricular ejection fraction, mPAP = mean pulmonary arterial pressure.