Individual Stress Analysis of Bone Tissue using Small Scale FE Model with Anisotropic Material Properties

• Project/Area Number: 23500514
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biomedical engineering/Biological material science
• Research Institution: Shinshu University
• Principal Investigator: KOSEKI Michihiko 信州大学, 繊維学部, 准教授 (50334503)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2011: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: バイオメカニクス / 個体別モデリング / X線CT / 異方性材料 / Ｘ線ＣＴ

Research Abstract

Patient-specific simulation with Finite Element (FE) method is a significant technique to examine biomechanical characteristics of bones. In order to improve the analytical performance, we have studied an individual FE analysis method with a consideration of structural anisotropy of bone tissue. Firstly we extract the structural anisotropy of cortical bone from microfocus X-ray CT images. The extracted image clearly illustrates Haversian and Volkmann's canals that causes the structural anisotropy of the cortical bones. Next we compute anisotropy factors based on the images. The factors indicate three dimensional stiffness distributions. Finally we perform FE analyses using the anisotropic material properties based on the factors. The analytical results suggest the importance of the material anisotropy in stress analyses of bone tissue.

Research Products

• [Presentation] 骨組織の構造異方性を考慮した個体別有限要素解析 (2014)
  • Author(s): 長谷川琢也, 小関道彦
  • Organizer: 日本機械学会 北陸信越支部第51 期総会・講演会
  • Place of Presentation: 富山県
  • Year and Date: 2014-03-08
• [Presentation] Individual Stress Analysis of Bone Tissue using Small Scale FE Model with Anisotropic Material Properties (2013)
  • Author(s): Michihiko KOSEKI, Takuya HASEGAWA
  • Organizer: The 15th International Conference on Biomedical Engineering
  • Place of Presentation: Singapore
  • Year and Date: 2013-12-06
• [Presentation] 骨組織の構造異方性を考慮した個体別有限要素解析 (2013)
  • Author(s): 長谷川琢也, 小関道彦
  • Organizer: 日本機械学会 北陸信越支部第50 期総会・講演会
  • Place of Presentation: 福井県
  • Year and Date: 2013-03-09
• [Presentation] Individual Stress Analysis of Bone Tissue using Small Scale FE Model with Anisotropic Material Properties (2013)
  • Author(s): Michihiko KOSEKI, Takuya HASEGAWA
  • Organizer: International Conference on Biomedical Engineering
  • Place of Presentation: Singapore
• [Presentation] 骨組織の構造異方性を考慮した個体別有限要素解析 (2013)
  • Author(s): 長谷川琢也・小関道彦
  • Organizer: 日本機械学会 北陸信越支部第50期総会・講演会
  • Place of Presentation: 福井大学文京キャンパス
• [Presentation] X 線 CT 画像に基づく骨組織の異方性情報抽出と個体別有限要素解析 (2012)
  • Author(s): 小関道彦, 宮下智弥
  • Organizer: 日本機械学会 2012年度年次大会
  • Place of Presentation: 石川県
  • Year and Date: 2012-09-09
• [Presentation] X 線 CT 画像に基づく下顎骨の個体別有限要素解析(骨の構造異方性の抽出) (2012)
  • Author(s): 小関道彦, 宮下智弥
  • Organizer: 日本機械学会 第24回バイオエンジニアリング部門講演会講
  • Place of Presentation: 大阪府
  • Year and Date: 2012-01-07
• [Presentation] X線CT画像に基づく骨組織の異方性情報抽出と個体別有限要素解析 (2012)
  • Author(s): 小関道彦・宮下智弥
  • Organizer: 日本機械学会 2012年度年次大会
  • Place of Presentation: 金沢大学角間キャンパス
• [Presentation] X線CT画像に基づく下顎骨の個体別有限要素解析（骨の構造異方性の抽出） (2012)
  • Author(s): 小関道彦・宮下智弥
  • Organizer: 日本機械学会 第24回バイオエンジニアリング部門講演会
  • Place of Presentation: 大阪大学豊中キャンパス
• [Presentation] 骨組織の構造異方性を考慮した個体別有限要素解析
  • Author(s): 長谷川琢也, 小関道彦
  • Organizer: 日本機械学会 北陸信越支部第50期総会・講演会
  • Place of Presentation: 富山県立大学
• [Remarks]
  • URL: http://fiber.shinshu-u.ac.jp/koseki/index.html