title: Pulmonary abnormalities in mitral valve disease.  Comparison between pulmonary wedge pressure, regional pulmonary blood flow and chest films.
abstract: Chest films, right sided heart catheterization, and measurement of the regional lung perfusion, using 133Xe, were carried out 31 times on patients with mitral valve disease. A relationship was found between the radiologic evaluation in 3 grades, and the values of pulmonary wedge pressure and the apical and basal perfusion. Changes in flow distribution as reflected in altered appearance of the vessels and the presence of interstitial edema were found to be the most sensitive factors in the evaluation of pulmonary wedge pressure. Chest radiography was thus found suitable for the evaluation of pulmonary wedge pressure in mitral valve disease.
mesh_terms: D000328:Adult; D000368:Aged; D001794:Blood Pressure; D006328:Cardiac Catheterization; D006332:Cardiomegaly / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D008944:Mitral Valve Insufficiency / Q000150:complications* / Q000000981:diagnostic imaging; D008946:Mitral Valve Stenosis / Q000150:complications* / Q000000981:diagnostic imaging; D011651:Pulmonary Artery / Q000000981:diagnostic imaging; D011652:Pulmonary Circulation; D011654:Pulmonary Edema / Q000000981:diagnostic imaging / Q000209:etiology*; D011859:Radiography; D014692:Ventilation-Perfusion Ratio; D014980:Xenon Radioisotopes
chemical_list: D014980:Xenon Radioisotopes