CEREBRAL CIRCULATION TIME AND CEREBRAL BLOOD FLOW - COMPARISON OF ANGIOGRAPHY AND 133XE TECHNIQUE

The mean cerebral circulation time was studied with angiography of the carotid artery and the cerebral blood flow determined with the xenon 133 clearance method in three groups of cases. The first group was without clinical or angiographic signs of an intracerebral focal lesion, the second had clinical evidence of a cerebrovascular lesion and the third group had subarachnoid haemorrhage. A significant correlation between the circulation time and cerebral blood flow existed in all three groups. © 1969, The Foundation Acta Radiologica. All rights reserved.