title: Evaluation of the critical deficit of cerebral circulation using radioactive tracers (bolus technique).
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D001049:Apnea / Q000175:diagnosis; D001926:Brain Death; D002533:Cerebral Angiography; D002560:Cerebrovascular Circulation; D003128:Coma / Q000175:diagnosis; D003937:Diagnosis, Differential; D006801:Humans; D007275:Injections, Intravenous; D008875:Middle Aged; D011877:Radionuclide Imaging / Q000295:instrumentation / Q000379:methods*; D012039:Regional Blood Flow; D013667:Technetium / Q000008:administration & dosage
chemical_list: D013667:Technetium