title: Thromboembolic Events Associated with Electrolytic Detachment of Guglielmi Detachable Coils and Target Coils : Comparison with Use of Diffusion-Weighted MR Imaging.
abstract: OBJECTIVE
  The purpose of this study was to retrospectively evaluate and compare the incidence of diffusion-weighted image (DWI) lesions between the Guglielmi detachable coil (GDC) and the Target coil for treating unruptured intracranial aneurysm.
  
  
  METHODS
  From 2010 to 2011, consecutive 222 patients with an intracranial aneurysm underwent coil embolization. Inclusion criterias were : 1) unruptured intracranial aneurysm, 2) one or more GDC or Target coils used with or without other coils, 3) DWI examination within 24 hours after coiling, and 4) coiling performed without a balloon or stent.
  
  
  RESULTS
  Ninety patients (92 cases) met the inclusion criteria. DWI lesions were detected in 55 (61.1%) of 90 patients. In the GDC group (n=44), DWI lesions were detected in 31 (70.5%). The average number of DWI lesions was 5.0±8.7 (mean±SD; range, 1-40) in aneurysm-related territory. In the Target coil group (n=48), DWI lesions were detected in 24 (50.0%). The number of DWI lesion was 2.1±5.4 (range, 1-32) in aneurysm-related territory. There was no significant correlation between a number of coils and DWI lesions. No significant differences were also observed in the number of DWI lesions in each group.
  
  
  CONCLUSIONS
  The GDC and Target coils, which have an electrolytic detachable system, showed no differences in the incidence of DWI lesion.
authors.affiliation: Department of Neurosurgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
authors.forename: Myeong Jin
authors.initials: MJ
authors.lastname: Kim
authors.forename: Yong Cheol
authors.initials: YC
authors.lastname: Lim
authors.forename: Se-Yang
authors.initials: SY
authors.lastname: Oh
authors.forename: Byung Moon
authors.initials: BM
authors.lastname: Kim
authors.forename: Bum-Soo
authors.initials: BS
authors.lastname: Kim
authors.forename: Yong Sam
authors.initials: YS
authors.lastname: Shin
keywords: Air bubble; Coil embolization; Detachable coil; Diffusion-weighted imaging; Thromboembolism
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