title: Regional lung function study using 133Xe gas in a case of chronic heart failure and co-existent chronic obstructive pulmonary disease (COPD): case report.
mesh_terms: D002908:Chronic Disease; D006333:Heart Failure / Q000150:complications / Q000000981:diagnostic imaging*; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000150:complications / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011877:Radionuclide Imaging; D014692:Ventilation-Perfusion Ratio; D014980:Xenon Radioisotopes
chemical_list: D014980:Xenon Radioisotopes