Roentgenographic changes reflecting the hemodynamics of the pulmonary vascular bed.
D001795:Blood Pressure Determination; D006801:Humans; D007700:Kinetics; D008168:Lung / Q000000981:diagnostic imaging*; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D011652:Pulmonary Circulation; D011859:Radiography; D012039:Regional Blood Flow