title: Transmission scanning the measurement of regional ventilation: a comparison with xenon-133.
mesh_terms: D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000175:diagnosis; D003201:Computers; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D010781:Photography / Q000295:instrumentation; D011655:Pulmonary Embolism / Q000175:diagnosis; D011868:Radioisotopes; D011877:Radionuclide Imaging; D012119:Respiration; D013147:Spirometry / Q000295:instrumentation; D013667:Technetium; D014978:Xenon
chemical_list: D011868:Radioisotopes; D014978:Xenon; D013667:Technetium