title: N13-N2(1).
abstract: 13N when coupled with a positron camera allows excellent quantification and imaging of regional lung function. The studies can be readily repeated since the half-life of the 13N is uncer 10 min and the radiation dose to the patient with each study is low. The very low solubility of 13N not only enhances lung imaging but reduces total body radiation by remaining confined to the lung.
mesh_terms: D000293:Adolescent; D000328:Adult; D000402:Airway Obstruction / Q000000981:diagnostic imaging / Q000503:physiopathology; D000818:Animals; D001982:Bronchial Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology; D003011:Closing Volume; D003201:Computers; D004285:Dogs; D006801:Humans; D000860:Hypoxia / Q000503:physiopathology; D008171:Lung Diseases / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008176:Lung Volume Measurements; D008297:Male; D008722:Methods; D009590:Nitrogen Radioisotopes; D009686:Nuclear Physics; D011650:Pulmonary Alveoli / Q000098:blood supply / Q000503:physiopathology; D011877:Radionuclide Imaging / Q000295:instrumentation; D012119:Respiration; D014661:Vasoconstriction
chemical_list: D009590:Nitrogen Radioisotopes