title: Brain scanning.
mesh_terms: D000792:Angiography; D001927:Brain Diseases / Q000175:diagnosis*; D001930:Brain Injuries / Q000175:diagnosis; D001932:Brain Neoplasms / Q000175:diagnosis; D002543:Cerebral Hemorrhage / Q000175:diagnosis; D000013:Congenital Abnormalities / Q000175:diagnosis; D004307:Dose-Response Relationship, Radiation; D006406:Hematoma / Q000175:diagnosis; D006801:Humans; D011300:Preoperative Care; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium