Angiographic predictors of spontaneous obliteration of transarterial partially embolized brain arteriovenous malformations.

Background: Spontaneous obliteration of cerebral arteriovenous malformations is uncommon but could occur after partial embolization.

Methods: A retrospective study of 140 patients that underwent embolization for cerebral AVMs from 2005 to August 2019 using liquid embolic agents. The angiographic outcome of patients was classified as regard complete embolization, partial embolization, and complete obliteration after partial embolization.