[Angiographic and scintigraphic studies in cerebral arteriovenous malformations]

In 9 patients with cerebral vascular malformations diagnosed by contrast radiography, brain scintigraphy was performed also. The radioisotope investigation confirmed the presence of these lesions in only 4 cases (44%). The relatively low per cent of positive scintigrams was due mainly to the small size of some lesions. Brain scintigraphy can be used only for the diagnosis of vascular malformations in cases in which contrast radiography cannot be done.