Development of optimization method for a cerebral aneurysm stentstrut pattern design

2009 Fiscal Year Final Research Report

• Project/Area Number: 20760108
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Fluid engineering
• Research Institution: Tohoku University
• Principal Investigator: NAKAYAMA Toshio Tohoku University, 大学院・医工学研究科, 助教 (80451631)
• Project Period (FY): 2008 – 2009
• Keywords: バイオ流体力学

Research Abstract

In this study, we introduced the viewpoint of the fluid dynamics for a stent design and developed the stent strut pattern of a cerebral aneurysm treatment stent with a high blood flow inhibitory capacity into a cerebral aneurysm.
The idealized shape was used for the cerebral aneurysm, the stent was implanted on the aneurysm neck. The computational fluid dynamics (CFD) analysis was performed. The hemodynamics in the cerebral aneurysm was evaluated quantitatively. From this, the searching method of the stent strut pattern for cerebral aneurysm was developed.

Research Products

• [Presentation] Development of Stent Designing for Cerebral Aneurysm (2010)
  • Author(s): Toshio Nakayama, Karkenahalli Srinivas, Hitomi Anzai, Makoto Ohta
  • Organizer: 2010 Annual ELyt Workshop
  • Place of Presentation: Sevrier, France
  • Year and Date: 20100314-20100316
• [Presentation] Pheology-Fluid dynamics of Blood Flow Modeling and Simulation (2010)
  • Author(s): Masud Behnia, Karkenahalli Srinivas, Makoto Ohta, Toshio Nakayama
  • Organizer: 3th Annual Scientific Meeting and Workshops, Conference Proceedings, 3th Annual Scientific Meeting and Workshops
  • Place of Presentation: Auckland, NEW ZEALAND
  • Year and Date: 20100206-20100211
• [Presentation] 脳動脈瘤内の血液を低下させるためのステントストラットの探索結果 (2010)
  • Author(s): 中山敏男, 鄭信圭, Srinivas Karkenahalli, 太田信
  • Organizer: 第22回バイオエンジニアリング講演会Proceedings of the 22th Bioengineering Conference 2009 Annual Meeting of BED/JSMD
  • Place of Presentation: 岡山県岡山市, 岡山理科大学, 日本機械学会
  • Year and Date: 20100109-20100110
• [Presentation] Development of stent for Cerebral Aneurysm (2009)
  • Author(s): T. Nakayama, K. Srinivas, M. Ohta
  • Organizer: Proceedings of the Ninth International Symposium on Advanced Fluid Information and Transdisciplinary fluind Integration(ATI/TFI 2009)
  • Place of Presentation: Sendai, Miyagi, Japan
  • Year and Date: 20091104-20091105
• [Presentation] 3rd Virtual Intracranial Stenting Challenge(VICS09) (2009)
  • Author(s): M. Ohta, T. Nakayama, H. Anzai, J. Cebral, L. Augsburger
  • Organizer: International Intracranial Stent Meeting 2009: Virtual Intracranial Stent Challnege 2009
  • Place of Presentation: Sendai, Miyagi, Japan
  • Year and Date: 20090805-20090807
• [Presentation] tudy of Searching Method for Position of Stent Strut to Decrease Blood flow in Cerebral Aneurysm (2009)
  • Author(s): Toshio Nakayama, Shinkyu Jeong, Srinivas Karkenahalli, Daniel A. Rufenacht, Akira Takahashi, Makoto Ohta
  • Organizer: Proceedings of the Third International Symposium on Biomechanics, Human Function and Information Science
  • Place of Presentation: Kanazawa, Ishikawa, Japan
  • Year and Date: 20090220-20090223
• [Presentation] 脳動脈瘤内の血流減少における最適な箇所の探索 (2009)
  • Author(s): 中山敏男, 鄭信圭, Srinivas Kakenahalli, Daniel A. Rufenacht, 高橋明, 太田信
  • Organizer: 第21回バイオエンジニアリング講演会No. 08-53講演論文集
  • Place of Presentation: 北海道札幌市, 日本機械学会
  • Year and Date: 20090123-20090124