ANEURYSMS RELATED TO CEREBRAL ARTERIOVENOUS-MALFORMATIONS - SUPERSELECTIVE ANGIOGRAPHIC ASSESSMENT IN 58 PATIENTS

PURPOSE: To report the comprehensive superselective angiographic chara cteristics of aneurysms associated with cerebral arteriovenous malform ations. METHOD: One hundred consecutive patients referred for cerebral arteriovenous malformation embolization underwent preembolization sup erselective angiography. Superselective angiograms were obtained after microcatheterization of arteriovenous malformation pedicles, and asse ssed for number and location of aneurysms related to the malformation. A chi(2) test was conducted to correlate these parameters with the on set of intracranial hemorrhage. RESULTS: Aneurysms were demonstrated i n 58 of 100 patients. Single aneurysms were found in 24 patients and m ultiple aneurysms in 34. Presence and number of aneurysms were found t o correlate significantly with a clinical presentation of hemorrhage. CONCLUSION: Superselective angiography was found to be of paramount im portance in elucidating the precise and detailed angioarchitecture of brain arteriovenous malformations.