• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2010 Fiscal Year Annual Research Report

血液・循環器・消化器病の診断・治療・予防のための計算ナノバイオメカニクスの創成

Research Project

Project/Area Number 19100008
Research InstitutionTohoku University

Principal Investigator

山口 隆美  東北大学, 大学院・医工学研究科, 教授 (30101843)

Co-Investigator(Kenkyū-buntansha) 石川 拓司  東北大学, 大学院・工学研究科, 准教授 (20313728)
今井 陽介  東北大学, 大学院・工学研究科, 助教 (60431524)
沼山 恵子  東北大学, 大学院・医工学研究科, 助教 (30400287)
Keywords計算生体力学 / 循環器 / 血液 / 消化器 / 呼吸器 / マラリア / 細胞工学 / 数値流体力学
Research Abstract

第一に,微小循環系の問題に対しては,これまでに開発した微小循環モデルの計算コードを領域分割法を用いて並列化し,赤血球を数千個含む大規模計算を可能にした.10~50μm程度の微小血管において計算されたみかけの粘度や血漿層厚さなどが実験値と良い一致をすることを確認した.また,マラリア感染における薬効評価のため,マラリア感染赤血球と正常赤血球,またはマラリア感染赤血球と血管内皮細胞間の接着能を変化させるモデルを導入し,感染赤血球膜表面のタンパク(例えばPfEMP1)の発現の有無による赤血球流動の変化を解析することが可能となった.さらに,血小板血栓生成の問題に応用し,病的な血栓生成によって赤血球への力学的負荷が増大する可能性が示唆された.第二に,消化器系の問題に対しては,これまでに開発した胃内容物攪拌モデルを用いて胃内容物量,姿勢,さらに食物粘度による流動変化および応力変化の詳細を明らかにした.密度や粘度の異なる食物の多相流として取り扱うモデルに発展させ,胃壁から分泌される胃液との攪拌現象の解析を可能にした.また,嚥下造影画像に基づく嚥下の患者個別モデルを開発し,姿勢や食物粘度,さらには障害の有無による嚥下過程の変化を解析することを可能にした.さらに,小腸内の消化物流動モデルを構築し,小腸内での栄養素などの物質輸送現象の詳細を明らかにした.第三に,肺循環に関連し,肺動脈の末梢側に流動抵抗を与えるモデルを構築した.これを気胸発生時の肺動脈に応用し,その際の血液の酸素化に与える影響を明らかにした.さらに,グラフィックスプロセッサ(GPU)を用いた肺内気流の患者個別モデルを新たに開発し,医療現場での応用で重要となる安価で小規模な計算機での解析環境の構築に成功した.

  • Research Products

    (40 results)

All 2011 2010 Other

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (28 results) Book (2 results) Remarks (1 results)

  • [Journal Article] Fluid particle diffusion through high-hematocrit blood flow within a capillary tube2011

    • Author(s)
      M. Saadatmand, T. Ishikawa, N. Matsuki, M. J. Abdekhodaie, Y. Imai, H. Ueno and T. Yamaguchi
    • Journal Title

      Journal of Biomechanics

      Volume: 44 Pages: 170-175

    • Peer Reviewed
  • [Journal Article] Modeling of hemodynamics arising from malaria infection2010

    • Author(s)
      Y. Imai, H. Kondo, T. Ishikawa, C. T. Lim and T. Yamaguchi
    • Journal Title

      Journal of Biomechanics

      Volume: 43 Pages: 1386-1393

    • Peer Reviewed
  • [Journal Article] Activation of caspases and apoptosis in response to low-voltage electric pulses2010

    • Author(s)
      N.Matsuki
    • Journal Title

      Oncology Reports

      Volume: 23 Pages: 1425-1433

    • Peer Reviewed
  • [Journal Article] Two-dimensional optimization of a stent for an aneurysm2010

    • Author(s)
      K.Srinivas
    • Journal Title

      Journal of Medical Devices

      Volume: 4 Pages: 21003.1-21003.7

    • Peer Reviewed
  • [Journal Article] Wall shear stress and near-wall convective transport : Comparisons with vascular remodelling in a peripheral graft anastomosis2010

    • Author(s)
      A.M.Gambaruto
    • Journal Title

      Journal of Computational Physics

      Volume: 229 Pages: 5339-5356

    • Peer Reviewed
  • [Journal Article] Fluid particle diffusion in a semidilute suspension of model micro-organisms2010

    • Author(s)
      T.Ishikawa
    • Journal Title

      Pysical Review E

      Volume: 82 Pages: 21408.1-21408.2

    • Peer Reviewed
  • [Journal Article] Hydrodynamic entrapment of bacteria swimming near a solid surface2010

    • Author(s)
      D.Giacche
    • Journal Title

      Pysical Review E

      Volume: 82 Pages: 56309.1-56309.8

    • Peer Reviewed
  • [Journal Article] Patient-specific morphological and blood flow analysis of pulmonary artery in the case of severe deformations of the lung due to pneumothorax2010

    • Author(s)
      J-J.Christophe
    • Journal Title

      Journal of Biomechanical Science and Engineering

      Volume: 5 Pages: 485-498

    • Peer Reviewed
  • [Journal Article] Hydrodynamic interaction of two unsteady model microorganisms2010

    • Author(s)
      D.Giacche
    • Journal Title

      Journal of Theoretical Biology

      Volume: 267 Pages: 252-263

    • Peer Reviewed
  • [Presentation] Large-scale numerical simulation of blood flow in microvessels2010

    • Author(s)
      D.Alizadehrad
    • Organizer
      4th East Asian Pacific Student Workshop on Nano-Biomedical Engineering
    • Place of Presentation
      National University of Singapore, Singapore
    • Year and Date
      2010-12-16
  • [Presentation] Hydrodynamic interaction of two unsteady squirmers2010

    • Author(s)
      T.Ishikawa
    • Organizer
      American Physical Society 63rd Annual DFD Meeting
    • Place of Presentation
      California, USA
    • Year and Date
      2010-11-21
  • [Presentation] Particle method computation of the red blood cell motion in malaria infection2010

    • Author(s)
      T.Yamaguchi
    • Organizer
      9th Internarional Conference of Numerical Analysis and Applied Mathematics
    • Place of Presentation
      Rhodes, Greece
    • Year and Date
      2010-09-24
  • [Presentation] Suspension hiomechanics of swimming micro-organisms2010

    • Author(s)
      T.Ishikawa
    • Organizer
      KIST-Tohoku Joint Symposium on Nanobiomedical Engineering 14th International Symposium of Tohoku University Global COE Program "Global Nano-Biomedical Engineering Education and Research Network Centre"
    • Place of Presentation
      Korea Institute of Science and Technology (KIST), Seoul, Korea
    • Year and Date
      2010-08-31
  • [Presentation] A numerical study on migration of malaria infected red blood cells2010

    • Author(s)
      Y.Imai
    • Organizer
      KIST-Tohoku Joint Symposium on Nanobiomedical Engineering 14th International Symposium of Tohoku University Global COE Program "Global Nano-Biomedical Engineering Education and Research Network Centre"
    • Place of Presentation
      Korea Institute of Science and Technology (KIST), Seoul, Korea
    • Year and Date
      2010-08-30
  • [Presentation] Effects of rosette formation and cytoadhesion on hemodynamics in malaria infection2010

    • Author(s)
      K.Nakaaki
    • Organizer
      KIST-Tohoku Joint Symposium on Nanobiomedical Engineering 14th International Symposium of Tohoku University Global COE Program "Global Nano-Biomedical Engineering Education and Research Network Centre"
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2010-08-30
  • [Presentation] Separation of cancer cells from blood by using a micro fluidic device2010

    • Author(s)
      T.Tanaka
    • Organizer
      KIST-Tohoku Joint Symposium on Nanobiomedical Engineering 14th International Symposium of Tohoku University Global COE Program "Global Nano-Biomedical Engineering Education and Research Network Centre"
    • Place of Presentation
      Seoul, Korea
    • Year and Date
      2010-08-30
  • [Presentation] A numerical study on fluid motion in the stomach2010

    • Author(s)
      I.Kobayashi
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-06
  • [Presentation] Diffusion of fluid particles in high hematocrit blood flow in a capillary tube2010

    • Author(s)
      M.Saadatmand
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-05
  • [Presentation] Parallel 3-D code to investigate the pathophysiology of malaria on distributed memory systems2010

    • Author(s)
      D.Alizadehrad
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-05
  • [Presentation] Computational biofluid mechanics of the living system2010

    • Author(s)
      T.Yamaguchi
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-05
  • [Presentation] Development of a micro fluidic device to separate cancer cells from blood2010

    • Author(s)
      T.Tanaka
    • Organizer
      6th World Congress of Biomechanics, International Symposium of Tohoku University Global COE Program, Global Nano-Biomedical Engineering Education and Research Network Centre, Nano-Biomedical Engineering in the East Asian-Pacific Rim Region
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-04
  • [Presentation] Effect of membrane modeling on the capsule deformation : comparison between a spring network and continuum models2010

    • Author(s)
      T.Oomori
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-04
  • [Presentation] A numerical study on the behavior of cells in micro-scale blood flows2010

    • Author(s)
      Y.Matsumoto
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-04
  • [Presentation] Analysis of swallowing motion based on videofluorography2010

    • Author(s)
      S.Ishida
    • Organizer
      6th World Congress of Biomechanics, International Symposium of Tohoku University Global COE Program, Global Nano-Biomedical Engineering Education and Research Network Centre, Nano-Biomedical Engineering in the East Asian-Pacific Rim Region
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-04
  • [Presentation] Measurement of the red blood cell (RBC) dispersion in microchannels : the effect of the temperature2010

    • Author(s)
      D.Pinho
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-04
  • [Presentation] Measuring the cell-free layer in circular microchannels2010

    • Author(s)
      C.Fidalgo
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-04
  • [Presentation] Micro-flow visualization of in vitro blood through a microchannel with a bifurcation and confluence2010

    • Author(s)
      D.Cidre
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-04
  • [Presentation] Blood-on-chips : flow through complex geometries2010

    • Author(s)
      R.Lima
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-04
  • [Presentation] Stable swimming of bacteria near a flat wall2010

    • Author(s)
      D.Giacche
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-03
  • [Presentation] Numerical modeling of microvascular hemodynamics in plasmodium falciparum malaria2010

    • Author(s)
      Y.Imai
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-03
  • [Presentation] Effect of adhesive properties of malaria-infected red blood cells in microcirculation2010

    • Author(s)
      K.Nakaaki
    • Organizer
      6th World Congress of Biomechanics
    • Place of Presentation
      Singapore Suntec Convention Centre, Singapore
    • Year and Date
      2010-08-03
  • [Presentation] Blood flow and cancer cell adhesion in a microchannel with bifurcation and confluence2010

    • Author(s)
      T.Ishikawa
    • Organizer
      17th Congress of the European Society of Biomechanics
    • Place of Presentation
      Edinburgh, UK
    • Year and Date
      2010-07-05
  • [Presentation] Confocal micro-flow visualization of blood cells2010

    • Author(s)
      R.Lima
    • Organizer
      5th European Conference on Computational Fluid Dynamics
    • Place of Presentation
      Lisbon, Portugal
    • Year and Date
      2010-06-17
  • [Presentation] Efficient parallel code for simulating malaria infected blood flow2010

    • Author(s)
      D.Alizadehrad
    • Organizer
      22nd International Conference on Parallel Computational Fluid Dynamics
    • Place of Presentation
      Kaohsiung, Taiwan
    • Year and Date
      2010-05-21
  • [Presentation] Numerical simulation of interaction among malaria-infected red blood cells, healthy red blood cells, and endothelial cells2010

    • Author(s)
      Y.Imai
    • Organizer
      6th European Conference on Computational Mechanics
    • Place of Presentation
      Paris, France
    • Year and Date
      2010-05-18
  • [Presentation] Hydrodynamic entrapment of bacteria near a solid surface2010

    • Author(s)
      D.Giacche
    • Organizer
      6th European Conference on Computational Mechanics
    • Place of Presentation
      Paris, France
    • Year and Date
      2010-05-18
  • [Presentation] Impact of membrane modeling in analysing deformation of a capsule : comparison between a spring network model and constitutive laws2010

    • Author(s)
      T.Omori
    • Organizer
      6th European Conference on Computational Mechanics
    • Place of Presentation
      Paris, France
    • Year and Date
      2010-05-18
  • [Book] Computational Vision and Medical Image Processing:Recent Trends2011

    • Author(s)
      R.Lima
    • Publisher
      Springer(349)
  • [Book] 産業界におけるコンピュータ・シミュレーション(スーパーコンピューティング技術産業応用協議会編)2010

    • Author(s)
      山口隆美
    • Total Pages
      385
    • Publisher
      アドバンスソフト出版事業部
  • [Remarks]

    • URL

      http://db.tohoku.ac.jp/whois/detail/le0189ae4faba37c37a1d841fbb6a58b.html

URL: 

Published: 2012-07-19  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi