RT Journal Article SR Electronic T1 Thrombosis in giant basilar tip aneurysms during coil embolization. JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 866 OP 871 VO 16 IS 4 A1 Renowden, S A A1 Molyneux, A J YR 1995 UL http://www.ajnr.org/content/16/4/866.abstract AB Two patients with giant basilar tip aneurysms underwent coil embolization, one with both platinum fiber and platinum Guglielmi detachable coils and the other with Guglielmi detachable coils only. In both cases, spontaneous intraaneurysmal thrombosis occurred outside the coil mass, presumably a result of disruption of the intraaneurysmal flow pattern.