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

Noninvasive sensing of bone quality using piezoelectricity of bone

Research Project

Project/Area Number 22K19912
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 90:Biomedical engineering and related fields
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Ikushima Kenji  東京農工大学, 工学(系)研究科(研究院), 教授 (20334302)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2022: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywords医工学 / 超音波 / 音響誘起電磁法 / 圧電効果 / コラーゲン / 骨粗鬆症
Outline of Research at the Start

本研究の目的は、音響誘起電磁法(ASEM法)を用いて、骨コラーゲンの結晶性(配向性)を非侵襲に評価する“骨質”センシングを実現することである。ASEM法は、対象物の圧電性を通して、超音波によって誘起される電気分極を検出し、超音波走査によりその分極の空間分布を画像化する手法である。本研究では、骨粗鬆症に着目し、骨コラーゲンの健全性と圧電性との相関を明らかにし、骨質のin-vivo評価に挑戦する。ASEM法は、非破壊・非脱灰での骨コラーゲン評価、さらには非侵襲ヒト診断につながる可能性を有しており、本研究手法の確立は、骨粗鬆症の学術研究・診断応用の両面において大きな変革をもたらすことが期待される。

Outline of Final Research Achievements

The purpose of this study is to realize a “bone quality” sensing method to evaluate the crystallinity (orientation) of bone collagen noninvasively using the Acoustically Assisted Electromagnetic Method (ASEM). The ASEM method detects the electrical polarization (piezoelectric polarization) induced by ultrasound waves (sound pressure) through the piezoelectricity of the object, and visualizes the spatial distribution of the polarization by ultrasonic scanning. In this study, (1) two different rat disease models, knee immobilization and diabetes mellitus, were created, and a tendency for piezoelectric polarization to decrease with osteoporosis was found, and (2) a tendency for polarization in the direction of fiber orientation was revealed. Furthermore, the introduction of pulse compression technology and ultrasonic array probes has opened up the prospect of in-vivo high-speed imaging.

Academic Significance and Societal Importance of the Research Achievements

超音波画像診断装置は、外来診察室や在宅におけるベッドサイドで迅速な検査が可能であることから医療の質と患者のQOLに資するものとして需要が増えています。『視診』と『エコー検査による内部形状観察』に加え、ASEM法による病理組織学的評価に近い『第三の目』が導入されれば、開業医は精確な診断が可能となり、より迅速な治療方針が立てられます。本研究成果により、簡便、迅速に骨コラーゲンの“質”を評価できることが示され、今後、骨折治癒判断や骨粗鬆症診断などへの利用が見込まれます。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (21 results)

All 2024 2023 2022 Other

All Journal Article (4 results) (of which Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (10 results) (of which Int'l Joint Research: 6 results) Remarks (2 results) Patent(Industrial Property Rights) (5 results) (of which Overseas: 2 results)

  • [Journal Article] Anisotropic properties of acoustically induced electric polarization in soft fibrous biological tissues2024

    • Author(s)
      Junna Kikuchi, Yuki Sakakura, Kenji Ikushima
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 63 Issue: 4 Pages: 04SP17-04SP17

    • DOI

      10.35848/1347-4065/ad2d0a

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Acoustically induced electric and magnetic polarizations and their sensing applications2023

    • Author(s)
      Kenji Ikushima
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: - Issue: SJ Pages: SJ0802-SJ0802

    • DOI

      10.35848/1347-4065/acc8dc

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Evaluation of Tensile Residual Stress in Welded Steel Plates Using Acoustically Stimulated Electromagnetic Response2022

    • Author(s)
      Suzuki Yuhei, Hosokawa Daisuke, Ikushima Kenji
    • Journal Title

      IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

      Volume: 69 Issue: 4 Pages: 1478-1484

    • DOI

      10.1109/tuffc.2022.3149386

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 音響誘起電磁応答法を用いた鉄鋼材料の非破壊検査~残留応力評価とイメージング技術~2022

    • Author(s)
      鈴木優平、生嶋健司
    • Journal Title

      IIC REVIEW

      Volume: 67 Pages: 23-27

    • Related Report
      2022 Research-status Report
    • Open Access
  • [Presentation] 超音波アレイプローブによる音響誘起電気分極の異方性測定2024

    • Author(s)
      猪子陽也、皆藤信人、生嶋健司
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Directional detection of acoustically induced electric polarization with a differential antenna2023

    • Author(s)
      Yoshino Enomoto, Yuki Sakakura, Kenji Ikushima
    • Organizer
      The 44th Symposium on UltraSonic Electronics (USE2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anisotropic properties of acoustically induced electric polarization in soft biological fibrous tissues2023

    • Author(s)
      Junna Kikuchi, Yuki Sakakura, Kenji Ikushima
    • Organizer
      The 44th Symposium on UltraSonic Electronics (USE2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Acoustically Stimulated Electromagnetic Method for sensing electric and magnetic properties2023

    • Author(s)
      Nobuto Kaitoh, Kenji Ikushima
    • Organizer
      Acoustics 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 音響誘起電気分極の新たな検出法の検討2023

    • Author(s)
      榎本淑乃、生嶋健司
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] Acoustically induced electric polarization in bone and its anisotropy2022

    • Author(s)
      Yuki Sakakura, Yamato Anzai, Yoshitsugu Kojima, Mami Matsukawa, Kenji Ikushima
    • Organizer
      2022 IEEE International Ultrasonics Symposium (IEEE IUS)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] First Human Experience with Acoustically Stimulated Electromagnetic (ASEM) Signal Measurement of Bone2022

    • Author(s)
      Kazuyo Ito, Yuki Sakakura, Nobuo Niimi, Masato Mori, Nobuto Kaitoh, Kenji Ikushima
    • Organizer
      The 43rd Symposium on UltraSonic Electronics (USE2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Acoustically induced electric and magnetic polarization and its sensing applications2022

    • Author(s)
      Kenji Ikushima
    • Organizer
      The 43rd Symposium on UltraSonic Electronics (USE2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 筋組織の音響誘起電気分極2022

    • Author(s)
      菊地純奈、坂倉佑紀、生嶋健司
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Research-status Report
  • [Presentation] アキレス腱における音響誘起電気分極の引張応力依存性2022

    • Author(s)
      皆藤信人、坂倉佑紀、伊藤一陽、生嶋健司
    • Organizer
      日本超音波医学会 第34回関東甲信越地方会学術集会
    • Related Report
      2022 Research-status Report
  • [Remarks] IKUSHIMA GROUP

    • URL

      http://web.tuat.ac.jp/~ikushima/index_j.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] IKUSHIMA GROUP

    • URL

      http://web.tuat.ac.jp/~ikushima/members_j.html

    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 測定装置及び測定方法2023

    • Inventor(s)
      生嶋健司、皆藤信人
    • Industrial Property Rights Holder
      国立研究開発法人科学技術振興機構
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2023-065838
    • Filing Date
      2023
    • Related Report
      2023 Annual Research Report
  • [Patent(Industrial Property Rights)] 測定装置及び測定方法2023

    • Inventor(s)
      生嶋健司、安齋也真人、坂倉佑紀
    • Industrial Property Rights Holder
      JST
    • Industrial Property Rights Type
      特許
    • Filing Date
      2023
    • Related Report
      2022 Research-status Report
    • Overseas
  • [Patent(Industrial Property Rights)] 測定装置及び測定方法2023

    • Inventor(s)
      生嶋健司,皆藤信人
    • Industrial Property Rights Holder
      JST
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2023-065838
    • Filing Date
      2023
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 測定装置及び測定方法2022

    • Inventor(s)
      生嶋健司、安齋也真人、坂倉佑紀
    • Industrial Property Rights Holder
      東京農工大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-079646
    • Filing Date
      2022
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 被測定対象の特性測定装置及び被測定対象の特性測定方法2022

    • Inventor(s)
      伊藤和馬,新実信夫,生嶋 健司
    • Industrial Property Rights Holder
      JST
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2022 Research-status Report
    • Overseas

URL: 

Published: 2022-07-05   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi