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Basic study of a new helmet-type PET scanner enabling quantitative measurement of brain function in a short time

Research Project

Project/Area Number 16K21637
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Medical Physics and Radiological Technology
Biomedical engineering/Biomaterial science and engineering
Research InstitutionNational Institutes for Quantum and Radiological Science and Technology

Principal Investigator

Tashima Hideaki  国立研究開発法人量子科学技術研究開発機構, 放射線医学総合研究所 計測・線量評価部, 主任研究員(定常) (70572907)

Research Collaborator Yamaya Taiga  
Yoshida Eiji  
Nishikido Fumihiko  
Abdella Ahmed M.  
Iwao Yuma  
Akamatsu Go  
Wakizaka Hidekatsu  
Obi Takashi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsPET / 画像再構成 / 減弱補正 / 同時推定 / Time of Flight / 深層学習 / 脳機能イメージング / 認知症診断 / 脳PET / ヘルメットPET / 認知症 / アルツハイマー / 同時推定法 / 頭部専用PET / モンテカルロシミュレーション / 診断装置 / 高感度 / 低コスト
Outline of Final Research Achievements

Development of a high performance and compact dedicated brain PET scanner with low cost and minimal burden to patients is important for wide spread application of brain PET such as for early diagnosis of dementia. For PET studies, correction for attenuation effect inside a body is required for accurate diagnosis, requiring an image including morphological information such as of a CT image. However, it is difficult to integrate an additional device for the correction into a compact system. In this theme, therefore, methods enabling attenuation correction only from PET measurement data were proposed, and basic study was conducted. As a result, it was shown that simultaneous estimation method for a PET image and correction data combined with deep learning has potential for the quantitative measurement for a brain dedicated PET system with high timing resolution.

Academic Significance and Societal Importance of the Research Achievements

時間情報を用いたPETは、測定対象が大きいほど効果が高いため、主に全身用装置において研究開発が進められてきたが、TOFヘルメット型PET装置のような頭部専用かつ高時間分解能装置を対象とした点に新規性と学術的意義がある。
高齢化社会において認知症対策は喫緊の課題であり、早期診断によって発症を遅らせたり、抑えたりできる可能性がある。本課題の成果により、低コストな普及型の頭部用PET装置開発が加速され、多くの人が認知症の早期診断の恩恵を受けられるようになると期待できる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (26 results)

All 2019 2018 2017 2016 Other

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (17 results) (of which Int'l Joint Research: 10 results) Remarks (2 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] First prototyping of a dedicated PET system with the hemisphere detector arrangement2019

    • Author(s)
      Tashima Hideaki、Yoshida Eiji、Iwao Yuma、Wakizaka Hidekatsu、Maeda Takamasa、Seki Chie、Kimura Yasuyuki、Takado Yuhei、Higuchi Makoto、Suhara Tetsuya、Yamashita Taichi、Yamaya Taiga
    • Journal Title

      Physics in Medicine & Biology

      Volume: 64 Issue: 6 Pages: 065004-065004

    • DOI

      10.1088/1361-6560/ab012c

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Simulation study comparing the helmet-chin PET with a cylindrical PET of the same number of detectors2017

    • Author(s)
      A. M. Ahmed, H. Tashima, E. Yoshida, F. Nishikido, T. Yamaya
    • Journal Title

      Physics in Medicine and Biology

      Volume: 62 Issue: 11 Pages: 4541-4550

    • DOI

      10.1088/1361-6560/aa685c

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Investigation of the optimal detector arrangement for the helmet-chin PET: A simulation study2017

    • Author(s)
      A. M. Ahmed, H. Tashima, E. Yoshida, T. Yamaya
    • Journal Title

      Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

      Volume: 858 Pages: 96-100

    • DOI

      10.1016/j.nima.2017.03.044

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Proposed helmet PET geometries with add-on detectors for high sensitivity brain imaging2016

    • Author(s)
      H. Tashima and T Yamaya
    • Journal Title

      Physics in Medicine and Biology

      Volume: 61 Issue: 19 Pages: 7205-7220

    • DOI

      10.1088/0031-9155/61/19/7205

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Basic Components and Principles of PET (3): Image Reconstruction and Data Corrections Necessary for PET Imaging2016

    • Author(s)
      田島英朗
    • Journal Title

      Medical Imaging Technology

      Volume: 34 Issue: 5 Pages: 287-291

    • DOI

      10.11409/mit.34.287

    • NAID

      130005171495

    • ISSN
      0288-450X, 2185-3193
    • Related Report
      2016 Research-status Report
  • [Presentation] 頭部専用PETにおける放射能・減弱補正係数同時推定法の深層学習を用いた精度向上手法の検討2019

    • Author(s)
      呉 博文、 田島 英朗、 山谷 泰賀、 小尾 高史
    • Organizer
      第38回日本医用画像工学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Development of an Imaging Simulation Framework Enabling Modelling of PET Scanners with Arbitrary Detector Arrangement2018

    • Author(s)
      Hideaki Tashima, Eiji Yoshida, Go Akamatsu, Taiga Yamaya
    • Organizer
      第115回日本医学物理学会学術大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Normalization for brain-dedicated PET with the hemispherical detector arrangement2018

    • Author(s)
      Hideaki Tashima, Go Akamatsu, Yuma Iwao, Hidekatsu Wakizaka, Eiji Yoshida, Taichi Yamashita, Taiga Yamaya
    • Organizer
      IEEE NSS&MIC 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A new hollow-dome phantom for normalization of the helmet-neck PET2018

    • Author(s)
      Hideaki Tashima, Go Akamatsu, Yuma Iwao, Hidekatsu Wakizaka, Eiji Yoshida, Taichi Yamashita, Taiga Yamaya
    • Organizer
      SNMMI 2018 Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ヘルメットPET装置の開発:追加検出器位置の最適化2017

    • Author(s)
      田島英朗, 吉田英治, 岩男悠真, 脇坂秀克, 山下大地, 田沢周作, 山谷泰賀
    • Organizer
      第64回応用物理学会春季学術講演会
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2017-03-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 小型頭部専用TOF-PETにおける放射能濃度分布と吸収補正の同時推定法の評価2017

    • Author(s)
      田中 理紗子, 小尾 高史, 田島 英朗, Ahmed Abdella Mohammednur, 山谷 泰賀
    • Organizer
      JAMITフロンティア, 電子情報通信学会医用画像研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] Development of the helmet-neck PET prototype: comparison with the helmet-chin PET2017

    • Author(s)
      H. Tashima, E. Yoshida, Y. Iwao, H. Wakizaka, T. Maeda, Y. Takado, C. Seki, M. Higuchi, T. Suhara, T. Yamashita, T. Yamaya
    • Organizer
      2017 IEEE Nuclear Science Symposium and Medical Imaging Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] First healthy volunteer study of the helmet-neck PET prototype2017

    • Author(s)
      Hideaki Tashima, Eiji Yoshida, Yuma Iwao, Hidekatsu Wakizaka, Takamasa Maeda, Yuhei Takado, Chie Seki, Makoto Higuchi, Tetsuya Suhara, Taichi Yamashita, Taiga Yamaya
    • Organizer
      The 12th Asia Oceania Congress of Nuclear Medicine and Biology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Add-on detector position for the second helmet PET prototype: chin vs. neck2017

    • Author(s)
      Hideaki Tashima, Eiji Yoshida, Yuma Iwao, Hidekatsu Wakizaka, Takamasa Maeda, Yuhei Takado, Chie Seki, Tetsuya Suhara, Taichi Yamashita, Shusaku Tazawa, Taiga Yamaya
    • Organizer
      SNMMI 2017 Annual Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Helmet-Neck PET試作機による健常者ボランティア試験2017

    • Author(s)
      田島英朗, 吉田英治, 岩男悠真, 脇坂秀克, 前田貴雅, 高堂裕平, 関千江, 樋口真人, 須原哲也, 山下大地, 山谷泰賀
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 改良型ヘルメットPET装置の試作と健常者ボランティア試験2017

    • Author(s)
      田島英朗, 吉田英治, 岩男悠真, 脇坂秀克, 前田貴雅, 高堂裕平, 関千江, 樋口真人, 山下大地, 山谷泰賀
    • Organizer
      第36回日本医用画像工学会大会
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Joint estimation of activity and attenuation for a compact brain TOF-PET system : a simulation study2017

    • Author(s)
      Risako Tanaka, Hideaki Tashima, Abdella M. Amed, Taiga Yamaya, Takashi Obi
    • Organizer
      第113回日本医学物理学会学術大会
    • Related Report
      2017 Research-status Report
  • [Presentation] First Clinical Test of the Helmet-Chin PET Prototype2016

    • Author(s)
      Hideaki Tashima, Eiji Yoshida, Yuma Iwao, Hidekatsu Wakizaka, Shusaku Tazawa, Chie Seki, Yasuyuki Kimura, Tetsuya Suhara, Taiga Yamaya
    • Organizer
      IEEE NSS&MIC 2016
    • Place of Presentation
      Strasbourg, France
    • Year and Date
      2016-10-29
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Detector Size and Geometry Optimization for the Helmet-Chin PET2016

    • Author(s)
      Abdella, M. Ahmed, Hideaki Tashima, Eiji Yoshida, Taiga Yamaya
    • Organizer
      IEEE NSS&MIC 2016
    • Place of Presentation
      Strasbourg, France
    • Year and Date
      2016-10-29
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] ヘルメット型PETにおける画像再構成法の開発2016

    • Author(s)
      田島英朗, 吉田英治, 岩男悠真, 山谷泰賀
    • Organizer
      第35回日本医用画像工学会学術大会
    • Place of Presentation
      千葉大学西千葉キャンパスけやき会館(千葉県千葉市)
    • Year and Date
      2016-07-21
    • Related Report
      2016 Research-status Report
  • [Presentation] Initial clinical test of the first Helmet-Chin PET prototype for highly sensitive brain imaging2016

    • Author(s)
      H. Tashima, E. Yoshida, F. Nishikido, H. Wakizaka, Y. Iwao, A. M. Ahmed, A. Mohammadi, Y. Kimura, T. Suhara, Y. Fujibayashi, S. Tazawa, T. Yamaya
    • Organizer
      SNMMI Annual Meeting
    • Place of Presentation
      San Diego, USA
    • Year and Date
      2016-06-09
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of attenuation correction method for helmet-chin PET prototype using CT images2016

    • Author(s)
      Yuma Iwao, Hideaki Tashima , Eiji Yoshida, Hiromi Sano, Yasuyuki Kimura, Taiga Yamaya
    • Organizer
      第113回日本医学物理学会学術大会
    • Place of Presentation
      パシフィコ横浜(神奈川県横浜市)
    • Year and Date
      2016-04-14
    • Related Report
      2016 Research-status Report
  • [Remarks] 次世代PET開発研究会報告書

    • URL

      https://www.nirs.qst.go.jp/usr/medical-imaging/ja/study/main.html

    • Related Report
      2018 Annual Research Report
  • [Remarks] 次世代PET開発研究会報告書

    • URL

      http://www.nirs.qst.go.jp/usr/medical-imaging/ja/study/main.html

    • Related Report
      2017 Research-status Report 2016 Research-status Report
  • [Patent(Industrial Property Rights)] ヘルメット型PET装置2017

    • Inventor(s)
      田島英朗, 山谷泰賀
    • Industrial Property Rights Holder
      国立研究開発法人量子科学技術研究開発機構
    • Industrial Property Rights Type
      特許
    • Filing Date
      2017
    • Acquisition Date
      2017
    • Related Report
      2017 Research-status Report
  • [Patent(Industrial Property Rights)] ヘルメット型PET装置2017

    • Inventor(s)
      田島英朗, 山谷泰賀
    • Industrial Property Rights Holder
      田島英朗, 山谷泰賀
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-058848
    • Filing Date
      2017-03-24
    • Related Report
      2016 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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