title: [Positron CT imaging with 13N-ammonia and 11C-carbon monoxide in intracranial tumors].
mesh_terms: D000328:Adult; D000641:Ammonia; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D002250:Carbon Radioisotopes; D003937:Diagnosis, Differential; D005069:Evaluation Studies as Topic; D006801:Humans; D008297:Male; D008875:Middle Aged; D009590:Nitrogen Radioisotopes; D014055:Tomography, Emission-Computed / Q000379:methods*
chemical_list: D002250:Carbon Radioisotopes; D009590:Nitrogen Radioisotopes; D000641:Ammonia