RT Journal A1 Tow DE, Wagner HN, Jr., DeLand FH, North WA T1 BRain scanning in cerebral vascular disease JF JAMA JO JAMA YR 1969 FD January 6 VO 207 IS 1 SP 105 OP 108 DO 10.1001/jama.1969.03150140057007 UL http://dx.doi.org/10.1001/jama.1969.03150140057007 AB Forty-three patients with cerebral vascular accidents were divided into groups according to whether the available data and brain scans indicated cerebral hemorrhage or thrombosis and according to the intervals between scanning and onset of symptoms. There was a higher incidence of abnormal brain scans in patients with hemorrhage. The difference was most striking during the first week. During this period two of the four patients in the hemorrhagic group had abnormal brain scans, compared with only one of ten in the thrombotic group. A normal scan performed within the first week increased the probability of the diagnosis of cerebral thrombosis, since abnormal brain scans occur in about 80% to 90% of patients with brain tumors. A change in the appearance of the lesion over appropriate periods of time was more characteristic of vascular disease than of tumor.