"Radioisotope arteriography" as an adjunct to the brain scan.
D001932:Brain Neoplasms / Q000175:diagnosis*; D002560:Cerebrovascular Circulation; D002561:Cerebrovascular Disorders / Q000175:diagnosis*; D003097:Collateral Circulation; D006801:Humans; D011877:Radionuclide Imaging; D013667:Technetium
D013667:Technetium