The use of computed axial tomography (CAT) for the diagnosis and management of intracranial angiomas.

The manifestations of angiomas on computed axial tomography (CAT) are described. Diagnostic changes were present in 66% and a focal abnormality, which was frequently suggestive of the diagnosis, in a further 27.5% of a consecutive series of 41 patients. It failed to show some focal abnormality in only two cases in which intravenous contrast was not given and in one case with a dural angiomatous malformation. The value of CAT in elucidating the nature of the complications of arteriovenous malformations is emphasized.