title: Simple noninvasive test for evaluating defects in pulmonary perfusion.
mesh_terms: D000368:Aged; D002283:Carcinoma, Bronchogenic / Q000503:physiopathology; D003201:Computers; D005260:Female; D006801:Humans; D008175:Lung Neoplasms / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009765:Obesity / Q000503:physiopathology; D010996:Pleural Effusion / Q000503:physiopathology; D011652:Pulmonary Circulation; D011655:Pulmonary Embolism / Q000503:physiopathology; D011877:Radionuclide Imaging; D012129:Respiratory Function Tests; D014692:Ventilation-Perfusion Ratio; D014978:Xenon
chemical_list: D014978:Xenon