title: Perfusion changes on lung scans in patients with congestive heart failure.
mesh_terms: D002318:Cardiovascular Diseases / Q000175:diagnosis; D002908:Chronic Disease; D003937:Diagnosis, Differential; D006333:Heart Failure / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging; D008171:Lung Diseases / Q000175:diagnosis; D011652:Pulmonary Circulation; D011655:Pulmonary Embolism / Q000175:diagnosis; D011859:Radiography; D011877:Radionuclide Imaging