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2006 Fiscal Year Final Research Report Summary

Flow field analysis of the flow around and inside the valsalva and of the coronary flow influenced by the prosthetic aortic valve

Research Project

Project/Area Number 17591491
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Thoracic surgery
Research InstitutionKanto Gakuin University

Principal Investigator

AKUTSU Toshinosuke  Kanto Gakuin University, College of Engineering, Prof., 工学部, 教授 (90231852)

Co-Investigator(Kenkyū-buntansha) MITSUMASA Umezu  Waseda Univ., School of science and engineering, Prof, 理工学部, 教授 (90132927)
NIINAMI Hiroshi  Juntendo Univ., School of Medicine, Associate Prof, 医学部, 助教授 (30241079)
IWASAKI Kiyotaka  Waseda Univ., School of science and engineering, Assistant Prof, 生命医療工学研究所, 講師 (20339691)
Project Period (FY) 2005 – 2006
KeywordsCardiac Surgery / Circulatory system / Bio-engineering / Fluid Engineering
Research Abstract

The purpose of this research is to grasp the influence of the leaflet and overall design differences on the flow field inside the valsalva and to clarify the influence of these differences on the coronary flow when the valve is equipped at aortic location. By utilizing the previously developed Aorta and experience accumulated in constructing simulation device, new Aorta model simulating aortic characteristic was planned and constructed and used it to analyze the influence of overall valve and leaflet design on the flow field inside the valsalva and on the coronary circulation by using DynamicPIV system
In the first research year, we planed to construct prototype Aorta model and planed execution of pre-experiment to establish analytical method using DynamicPIV system. Pre-experiment using newly constructed prototype Aorta model was executed using the MIRA valve and the SJM valve as test valves, resulted in finding substantial differences on the generated flow.
Above-mentioned new analytical method was purposely tried at trusted mitral valve location, where enough data was accumulated for evaluation, to find the influence of the valve designs on the mitral flow field. Some results were already reported through international and domestic conferences.
In the last research year, we constructed final silicone Aorta model with valsalva. It was equipped in the simulation device and experiment was conducted. As a result, flow field influenced by the mechanical bi-leaflet valve was obtained in detail and was able to grasp the flow phenomenon inside the valsalva. With this time-resolved information in hand, we were able to grasp the influence of flow field to the coronary circulation.

  • Research Products

    (12 results)

All 2006

All Journal Article (12 results)

  • [Journal Article] Dynamic particle image velocimetry flow analysis of the flow field2006

    • Author(s)
      Toshinosuke Akutsu, Jun Saito
    • Journal Title

      J. Art. Organs Vol.9

      Pages: 165-178

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Time Resolved PIV and LDA Study of the Turbulent Flow Field of Bi-leaflet Mechanical Mitral Prostheses2006

    • Author(s)
      T.AKUTSU, T.FUKUDA, S.SAKURAI, J.SAITO
    • Journal Title

      Biocybernetics and Biomedical Engieering, PWN - Polish Science Publishers 26, 1

      Pages: 53-59

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 機械的人工心臓僧帽二葉弁装着時の心室内流れ場の解析-DynamicPIVを用いての三次元流れ場の検討2006

    • Author(s)
      福田孝将, 齋藤淳, 今井亮太, 鈴木知行, 阿久津敏乃介
    • Journal Title

      可視化情報全国講演会(神戸2006)講演論文集 Vol.26 Suppl. No.2

      Pages: 173-174

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Dynamic PIV Flow Field Study of the Bi-leaflet Mitral Prostheses2006

    • Author(s)
      Toshinosuke Akutsu, Jun Saito, K. Mori, T. Suzuki, K. Miura
    • Journal Title

      Abstract of the 5^<th> World Congress of Biomechanics, Munich, Germany, July 29-Aug. 4, 2006 CD

      Pages: 29

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Dynamic PIV Flow Field and Sound Study of the Bi-leaflet Mitral Prostheses2006

    • Author(s)
      T.Akutsu, J.Saito, K.Mori, R.Imai, T.Suzuki, K.Yuyama, K.Miura
    • Journal Title

      World Congress on Medical Physics and Biomedical Engineering, Seoul, Korea, Aug. 27-Sep. 1, 2006 CD

      Pages: 3030-3033

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] INFLUENCE OF THE PULSE WAVEFORM AND WORKING FLUID ON THE IN VITRO FLOW FIELD STUDY OF THE MECHANICAL BI-LEAFLET MITRAL PROSTHESES2006

    • Author(s)
      T.Akutsu, T.Suzuki, J.Saito, K.Mori
    • Journal Title

      Proceedings of the XVth International onference on Mechanics in Medicine and Biology CD

      Pages: 84-85

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Dynamic particle image velocimetry flow analysis of the flow field2006

    • Author(s)
      Toshinosuke Akutsu, Jun Saito
    • Journal Title

      J. Art. Organs Vol. 9

      Pages: 165-178

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Time Resolved PIV and LDA Study of the Turbulent Flow Field of Bi-leaflet Mechanical Mitral Prostheses2006

    • Author(s)
      T.AKUTSU, T.FUKUDA, S.SAKURAI, J.SAITO
    • Journal Title

      Biocybernetics and Biomedical Engieering, PWN-Polish Science Publishers Vol. 21, No.1

      Pages: 53-59

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Ventricular Flow Field Analysis of Mechanical Mitral Bi-leaflet Prostheses : three-dimensional flow field analysis using Dynamic PIV system (in Japanese)2006

    • Author(s)
      T.Fukuda, J.Saito, R.Imai, T.Suzuki, T.Akutsu
    • Journal Title

      Abstract of the National Conference of the Visualization Society of Japan, Kobe, Japan Vol. 26 Suppl., No 2

      Pages: 173-174

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Dynamic PIV Flow Field Study of the Bi-leaflet Mitral Prostheses2006

    • Author(s)
      Toshinosuke Akutsu, Jun Saito, K. Mori, T. Suzuki, K. Miura
    • Journal Title

      Abstract of the 5th World Congress of Biomechanics, Munich, Germany, July 29-Aug. 4, 2006, CD

      Pages: 29

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Dynamic PIV Flow Field and Sound Study of the Bi-leaflet Mitral Prostheses2006

    • Author(s)
      T.Akutsu, J.Saito, K.Mori, R.Imai, T.Suzuki, K.Yuyama, K.Miura
    • Journal Title

      World Congress on Medical Physics and Biomedical Engineering, Seoul, Korea, Aug. 27-Sep. 1, 2006, CD

      Pages: 3030-3033

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] INFLUENCE OF THE PULSE WAVEFORM AND WORKING FLUID ON THE IN VITRO FLOW FIELD STUDY OF THE MECHANICAL BI-LEAFLET MITRAL PROSTHESES2006

    • Author(s)
      T.Akutsu, T.Suzuki, J.Saito, K.Mori
    • Journal Title

      Proceedings of the XVth International conference on Mechanics in Medicine and Biology, CD

      Pages: 84-85

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2008-05-27  

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