biostudies-literatureUnknown62(8)Hara TThe rate of recanalization after coil embolization for unruptured intracranial aneurysms (UIAs) is reported to occur around 11.3%-49%. This study aims to investigate the factors that influence the recanalization after coil embolization for UIAs in our institution. We retrospectively investigated 307 UIAs in 296 patients treated at our institution between April 2004 and December 2016. The stent-used cases were excluded. Cerebral angiography and 3D time-of-flight magnetic resonance angiography (TOF MRA) were used for evaluation of the postoperative occlusion status. Volume embolization ratio (VER), aneurysmal size, neck width, and aspect ratio (AR) were compared between the recanalized and non-recanalized groups. The mean follow-up period ranged from 6 to 172 months (mean: 79.0 ± 39.8 monthsNeurologia medico-chirurgica377-383https://www.ebi.ac.uk/biostudies/studies/S-EPMC9464477biostudies-literatureAspect Ratio Is Associated with Recanalization after Coiling of Unruptured Intracranial Aneurysms.PMC9464477Satow TTakahashi JCHashimura NOhta THara THamano EIkedo TSumi MKataoka HfalseAspect Ratio Is Associated with Recanalization after Coiling of Unruptured Intracranial Aneurysms.The rate of recanalization after coil embolization for unruptured intracranial aneurysms (UIAs) is reported to occur around 11.3%-49%. This study aims to investigate the factors that influence the recanalization after coil embolization for UIAs in our institution. We retrospectively investigated 307 UIAs in 296 patients treated at our institution between April 2004 and December 2016. The stent-used cases were excluded. Cerebral angiography and 3D time-of-flight magnetic resonance angiography (TOF MRA) were used for evaluation of the postoperative occlusion status. Volume embolization ratio (VER), aneurysmal size, neck width, and aspect ratio (AR) were compared between the recanalized and non-recanalized groups. The mean follow-up period ranged from 6 to 172 months (mean: 79.0 ± 39.8 months2022-01-01T00:00:00Z2022 Aug2025-04-18T20:53:40.053Z2025-04-07T08:59:13.977ZS-EPMC94644773583112310.2176/jns-nmc.2022-0052