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J Korean Neurosurg Soc. 2013 Jul;54(1):19-24. English. Original Article.
Kim MJ , Lim YC , Oh SY , Kim BM , Kim BS , Shin YS .
Department of Neurosurgery, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.
Department of Neurosurgery, Ajou University School of Medicine, Suwon, Korea.
Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Korea.
Department of Radiology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.

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. CONCLUSION: The GDC and Target coils, which have an electrolytic detachable system, showed no differences in the incidence of DWI lesion.

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