title: Endovascular coil embolization in internal carotid artery bifurcation aneurysms.
abstract: OBJECTIVE
  To present the clinical and radiological results of coil embolization in internal carotid artery (ICA) bifurcation aneurysms (BA).
  
  
  METHODS
  The records of 65 patients with 66 ICA BA were retrieved from data prospectively accrued between September 1999 and July 2013. Clinical and morphological outcomes of the aneurysms were assessed, including technical aspects of treatment.
  
  
  RESULTS
  The aneurysms under study were directed either superiorly (41/66, 62.1%), anteriorly (24/66, 36.4%), or posteriorly (1/66, 1.5%), and all were devoid of perforators. Aneurysmal necks were situated symmetrically at the terminal ICA (37/66, 56.1%) or slightly deviated to the proximal A1 segment (29/66, 43.9%). The steam-shaped S microcatheter (73.8%) was most commonly used to select the aneurysms, and the single microcatheter technique was most commonly applied (56.1%) to perform coil embolization, followed by balloon remodelling (21.2%), multiple microcatheter (15.1%), and stent-protection (7.6%). Successful aneurysmal occlusion was achieved in 100% of cases, with no procedure-related morbidity or mortality. Imaging performed in the course of follow-up (mean duration 27.3 months) confirmed stable occlusion of most lesions (47/53, 88.7%).
  
  
  CONCLUSIONS
  Through tailored technical strategies, ICA BA are amenable to safe and effective endovascular coil embolization, with a tendency for stable occlusion long-term.
authors.affiliation: Department of Radiology, JoongAng University Hospital, JoongAng University College of Medicine, Seoul, Republic of Korea.
authors.forename: W J
authors.initials: WJ
authors.lastname: Lee
authors.affiliation: Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea. Electronic address: aronnn@naver.com.
authors.forename: Y D
authors.initials: YD
authors.lastname: Cho
authors.affiliation: Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
authors.forename: H-S
authors.initials: HS
authors.lastname: Kang
authors.affiliation: Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
authors.forename: J E
authors.initials: JE
authors.lastname: Kim
authors.affiliation: Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
authors.forename: W S
authors.initials: WS
authors.lastname: Cho
authors.affiliation: Department of Neurosurgery, Kangwon National University Hospital, Kangwon National University College of Medicine, Chuncheon, Republic of Korea.
authors.forename: K M
authors.initials: KM
authors.lastname: Kim
authors.affiliation: Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea; Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea.
authors.forename: M H
authors.initials: MH
authors.lastname: Han
mesh_terms: D000783:Aneurysm / Q000000981:diagnostic imaging / Q000628:therapy*; D017542:Aneurysm, Ruptured / Q000000981:diagnostic imaging / Q000628:therapy*; D002343:Carotid Artery, Internal; D004621:Embolization, Therapeutic / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010975:Platelet Aggregation Inhibitors / Q000627:therapeutic use; D011446:Prospective Studies; D011859:Radiography; D016896:Treatment Outcome
chemical_list: D010975:Platelet Aggregation Inhibitors