Contrast Reflux Into IVC in Acute Pulmonary Embolism Predicts Clinical Deterioration Risk. - Leverone NA; Singer AG; Lopez AA; Ellberg C; Henry PJ; Kabadi AA; Self AA; Leverone DM; Yen A; Hahn L; Karunamuni J; Weihe E; et al. (Pulmonary circulation, 2026)