title: Sequential brain scanning as an adjunctive scanning procedure.
abstract: Sequential brain scans were performed at various time intervals of up to four hours after injection of 99mTc pertechnetate in 108 patients who had previously undergone "routine" one-hour brain scans which were considered normal or equivocal. Forty-six patients were proved to have a discrete morphologic brain lesion. Pathologic processes were demonstrated by the sequential scanning technique in all but 6 cases. In nearly a third of these 46 patients (28%), careful observation of the progressive and subtle changes in radioactivity in the whole sequential scan series was necessary for detection of the lesions: they could not be appreciated on any single static scan when viewed independently.
mesh_terms: D000238:Adenoma, Chromophobe / Q000175:diagnosis; D001921:Brain; D001927:Brain Diseases / Q000175:diagnosis; D001932:Brain Neoplasms / Q000175:diagnosis; D002539:Cerebral Arterial Diseases / Q000175:diagnosis; D002551:Cerebral Ventricle Neoplasms / Q000175:diagnosis; D004806:Ependymoma / Q000175:diagnosis; D005910:Glioma / Q000175:diagnosis; D006801:Humans; D011149:Pons; D011877:Radionuclide Imaging; D013667:Technetium
chemical_list: D013667:Technetium