title: Nonoverlapping Y-configuration stenting technique with dual closed-cell stents in wide-neck basilar tip aneurysms.
abstract: BACKGROUND
  Stent-assisted coiling is increasingly used to treat wide-neck intracranial aneurysms to protect the lumen of the parent artery from coil protrusion. This technique is insufficient for treating some aneurysms, depending on their configurations.
  
  
  OBJECTIVE
  To describe a variant of the Y-configuration stent-assisted coiling technique for the treatment of basilar tip aneurysms with wide necks.
  
  
  METHODS
  This technique, called the nonoverlapping Y stenting technique, consists of the deployment of a closed-cell self-expandable stent from the basilar trunk to a posterior cerebral artery and then placement of a second stent from the basilar bifurcation to the other posterior cerebral artery without overlapping the first stent. The proximal flared portion of the second stent was located at the neck of the aneurysm. Coil embolization was performed under dual-stent protection.
  
  
  RESULTS
  We successfully filled wide-neck aneurysms with coils under stent protection by forming a bridge across the aneurysmal neck without overlapping 2 closed-cell stents. Six basilar tip aneurysms were successfully treated with this technique.
  
  
  CONCLUSIONS
  The nonoverlapping Y stenting technique is a good alternative to traditional stent-assisted coiling. This technique is particularly suitable for the treatment of broad-neck bifurcation aneurysms.
authors: Department of Radiology, Seoul National University Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea.
authors: Young Dae
authors: YD
authors: Cho
authors: Sun-Won
authors: SW
authors: Park
authors: Jong Young
authors: JY
authors: Lee
authors: Jung Hwa
authors: JH
authors: Seo
authors: Hyun-Seung
authors: HS
authors: Kang
authors: Jeong Eun
authors: JE
authors: Kim
authors: Moon Hee
authors: MH
authors: Han
mesh_terms: D000368:Aged; D019917:Blood Vessel Prosthesis Implantation / Q000295:instrumentation / Q000379:methods; D002404:Catheterization; D004621:Embolization, Therapeutic / Q000295:instrumentation* / Q000379:methods*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000601:surgery / Q000628:therapy*; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D015607:Stents / Q000592:standards*