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New-generation medical diagnosis by ultra advancement of X-ray CT

Research Project

Project/Area Number 19H04483
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90130:Medical systems-related
Research InstitutionKanazawa University

Principal Investigator

Arimoto Makoto  金沢大学, 先端宇宙理工学研究センター, 准教授 (40467014)

Co-Investigator(Kenkyū-buntansha) 小林 聡  金沢大学, 保健学系, 教授 (30313638)
片岡 淳  早稲田大学, 理工学術院, 教授 (90334507)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2020: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
KeywordsX線CT / フォトンカウンティング / 造影剤 / X線イメージング / スペクトラルX線CT / 高線量イメージング / in vivo イメージング / MPPC / シンチレータ / デュアルエナジーCT / X戦CT / 光子計数 / 抗がん剤 / フォトンカウンティングCT / 大規模集積回路 / 光子計測
Outline of Research at the Start

X線CTは非破壊的に人体内部構造を3次元的に取得でき、このX線CTでしか見つからない病変が多く、現代医療を支える上で必須の技術である。微細な血管を鮮明に映し出すために造影剤が用いられることが多いが、患者の病気によっては、造影剤の使用を大きく制限されることがあり未だ安全で汎用な技術には至っていない。この課題を克服するためには、X線CT装置の圧倒的な感度向上が必須となる。本研究では、これを実現するために次世代光センサーMPPCを用いた超高感度のX線CT技術を新たに創出し、かつ臨床的見地からの性能実証を目指す。そして、高感度化の実現により新しい診断医療の道を切り開くアプローチへの足がかりとする。

Outline of Final Research Achievements

In this study, we developed a next-generation photon counting CT (PC-CT) system consisting of high-speed scintillators and semiconductor photodetector multi-pixel photon counters, and conducted a quantitative comparison with conventional clinical CT devices. We found that the photon-counting detection of X-rays in this system, which is one of distinctive features, allows for low-dose radiation exposure. By utilizing the energy information of X-rays, we successfully visualized the three-dimensional spatial distribution of contrast agents such as iodine, gadolinium, and platinum.
Furthermore, we successfully performed in vivo imaging by administering the contrast agent to mice, demonstrating that the PC-CT system developed in this study has the potential to contribute to future drug delivery systems.

Academic Significance and Societal Importance of the Research Achievements

人体にメスを入れることなく体内を可視化するシステムは、現代医療のみならず、次世代の診断・治療において必須となる技術である。現在普及しているX線CT装置は現代医療を支えるインフラのひとつであるものの、X線照射に伴う被ばくが多く、被写体の物質同定に乏しい。本研究で開発したフォトンカウンティングCTシステムはこれらの課題を解決し、どのような患者に対しても安心・安全な診断を提供することができる。また様々な疾患の早期発見や治療に応用でき、次世代の医療イメージング技術に大きく貢献する成果を得ることができた。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (33 results)

All 2023 2022 2021 2020 2019

All Journal Article (14 results) (of which Peer Reviewed: 12 results,  Open Access: 5 results) Presentation (19 results) (of which Int'l Joint Research: 7 results,  Invited: 2 results)

  • [Journal Article] Development of 64-channel LSI with ultrafast analog and digital signal processing dedicated for photon-counting computed tomography with multi-pixel photon counter2023

    • Author(s)
      Arimoto Makoto、Sato Daichi、Mizuno Tomoya、Yoshiura Kotaro、Ishiguro Kairi、Tomoda Takahiro、Kawashima Hiroki、Kobayashi Satoshi、Kataoka Jun、Sagisaka Mayu、Ikeda Hirokazu、Terazawa Shinsuke、Shiota Satoshi
    • Journal Title

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

      Volume: 1047 Pages: 167721-167721

    • DOI

      10.1016/j.nima.2022.167721

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of an MPPC-based gamma-ray detector onboard a radiation source imager under high-dose environments and initial performance results2023

    • Author(s)
      Mizuno Tomoya、Arimoto Makoto、Sato Daichi、Yoshiura Kotaro、Tomoda Takahiro、Ishiguro Kairi、Kataoka Jun、Sawano Tatsuya、Yonetoku Daisuke、Terazawa Shinsuke、Shiota Satoshi
    • Journal Title

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

      Volume: 1046 Pages: 167544-167544

    • DOI

      10.1016/j.nima.2022.167544

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Initial results of in vivo CT imaging of contrast agents using MPPC-based photon-counting CT2023

    • Author(s)
      Daichi Sato, Makoto Arimoto, Kotaro Yoshiura, Tomoya Mizuno, Ko Aiga, Kairi Ishiguro, Takahiro Tomoda, Hiroki Kawashima, Satoshi Kobayashi, Kenichiro Okumura, Kazuhiro Murakami, Jun Kataoka, Takaya Toyoda, Mayu Sagisaka, Shinsuke Terazawa, Satoshi Shiota
    • Journal Title

      Nuclear Inst. and Methods in Physics Research, A

      Volume: 1045 Pages: 167960-167960

    • DOI

      10.1016/j.nima.2022.167960

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experiment of in vivo imaging with third generation setup using Photon-Counting CT with 64ch Multi-Pixel Photon Counter2023

    • Author(s)
      M. Sagisaka, T. Toyoda, J. Kataoka, M. Arimoto, H. Kawashima, S. Kobayashi, K. Murakami, K. Okumura, D. Sato, K. Yoshiura, T. Mizuno, K. Aiga, S. Terazawa, S. Shiota
    • Journal Title

      Nuclear Inst. and Methods in Physics Research, A

      Volume: 1045 Pages: 167580-167580

    • DOI

      10.1016/j.nima.2022.167580

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] CT開発の最先端 Photon-Counting CT2022

    • Author(s)
      有元誠、川嶋広貴、小林聡、片岡淳
    • Journal Title

      日獨医報

      Volume: 66 Pages: 79-90

    • Related Report
      2022 Annual Research Report
  • [Journal Article] A low albumin level as a risk factor for transient severe motion artifact induced by gadoxetate disodium administration: A retrospective observational study with free-breathing dynamic MRI and an experimental study in rats2022

    • Author(s)
      Sugiura Takumi、Okumura Kenichiro、Sasaki Motomitsu、Matsumoto Junichi、Ogi Takahiro、Yoneda Norihide、Kitao Azusa、Kozaka Kazuto、Koda Wataru、Kobayashi Satoshi、Gabata Toshifumi
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 3 Pages: e0265588-e0265588

    • DOI

      10.1371/journal.pone.0265588

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Demonstration of multiple contrast agent imaging for the next generation color X-ray CT2020

    • Author(s)
      Maruhashi,T.; Kiji,H.; Toyoda,T.; Kataoka,J.; Arimoto,M.; Kobayashi,S.; Kawashima,H.; Terazawa,S.; Shiota, S.;, Ikeda,H.
    • Journal Title

      NIM-A

      Volume: 958 Pages: 162801-162801

    • DOI

      10.1016/j.nima.2019.162801

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pathophysiology and Imaging Findings of Bile Duct Necrosis: A Rare but Serious Complication of Transarterial Therapy for Liver Tumors2020

    • Author(s)
      Kobayashi Satoshi、Kozaka Kazuto、Gabata Toshifumi、Matsui Osamu、Koda Wataru、Okuda Miho、Okumura Kenichiro、Sugiura Takumi、Ogi Takahiro
    • Journal Title

      Cancers

      Volume: 12 Issue: 9 Pages: 2596-2596

    • DOI

      10.3390/cancers12092596

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 64-channel photon-counting computed tomography using a new MPPC-CT system2020

    • Author(s)
      Kiji H.、Maruhashi T.、Toyoda T.、Kataoka J.、Arimoto M.、Sato D.、Yoshiura K.、Kobayashi S.、Kawashima H.、Terazawa S.、Shiota S.、Ikeda H.
    • Journal Title

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

      Volume: 984 Pages: 164610-164610

    • DOI

      10.1016/j.nima.2020.164610

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct-Acting Antiviral Agents Reduce the Risk of Malignant Transformation of Hepatobiliary Phase-Hypointense Nodule without Arterial Phase Hyperenhancement to Hepatocellular Carcinoma on Gd-EOB-DPTA-Enhanced Imaging in the Hepatitis C Virus-Infected Liver2020

    • Author(s)
      Shimizu Yoshiaki、Arai Kuniaki、Yamashita Taro、Yamashita Tatsuya、Shimakami Tetsuro、Kawaguchi Kazunori、Kitamura Kazuya、Sakai Yoshio、Mizukoshi Eishiro、Honda Masao、Kitao Azusa、Kozaka Kazuto、Kobayashi Satoshi、Kaneko Shuichi
    • Journal Title

      Liver Cancer

      Volume: 9 Issue: 3 Pages: 261-274

    • DOI

      10.1159/000504889

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 次世代光センサーMPPCと高速シンチレータの融合による革新的X線CTへの挑戦2020

    • Author(s)
      有元 誠, 片岡 淳, 寺澤慎祐, 塩田 諭
    • Journal Title

      日立金属技報

      Volume: 36 Pages: 28-33

    • Related Report
      2019 Annual Research Report
    • Open Access
  • [Journal Article] Effect of gravity on portal venous flow: Evaluation using multiposture MRI2019

    • Author(s)
      Kadoya Yoshisuke、Miyati Tosiaki、Kobayashi Satoshi、Ohno Naoki、Gabata Toshifumi
    • Journal Title

      Journal of Magnetic Resonance Imaging

      Volume: 50 Issue: 1 Pages: 83-87

    • DOI

      10.1002/jmri.26626

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Renal pelvic and ureteral wall thickening in renal cell carcinoma: prevalence, cause, and clinical significance2019

    • Author(s)
      Yoshida Kotaro、Hamaoka Mami、Kobayashi Satoshi、Matsumoto Junichi、Inoue Dai、Yoneda Norihide、Gabata Toshifumi
    • Journal Title

      Japanese Journal of Radiology

      Volume: 37 Issue: 12 Pages: 832-840

    • DOI

      10.1007/s11604-019-00889-1

    • NAID

      210000172951

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relationship between the degree of abdominal wall movement and the image quality of contrast-enhanced MRI: semi-quantitative study especially focused on the occurrence of transient severe motion artifact.2019

    • Author(s)
      Ikeno H, Kobayashi S, Kozaka K, Ogi T, Inoue D, Yoneda N, Yoshida K, Ohno N, Gabata T, Kitao A.
    • Journal Title

      Jpn J Radiol.

      Volume: 38 Issue: 2 Pages: 165-177

    • DOI

      10.1007/s11604-019-00896-2

    • NAID

      210000160943

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] 原子炉内の超高線量デブリの位置特定に向けたガンマカメラの開発2023

    • Author(s)
      供田 崇弘、水野 睦也、有元 誠
    • Organizer
      東日本大震災・原子力災害 第1回 学術研究集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 次世代X線CTを用いた複数造影剤の生体内イメージング2022

    • Author(s)
      佐藤 大地、有元 誠、水野 睦也、石黒 海里、供田 崇弘、川嶋 広貴、小林 聡、村上 和弘、奥村 健一郎、片岡 淳、匂坂 真結、寺澤 慎祐、塩田 諭
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Initial results of in vivo CT imaging of contrast agents using MPPC-based photon-counting CT2022

    • Author(s)
      Daichi Sato; Makoto Arimoto; Kotaro Yoshiura; Tomoya Mizuno; Ko Aiga; Kazuhiro Murakami; Hiroki Kawashima; Satoshi Kobayashi; Kenichiro Okumura; Jun Kataoka; Takaya Toyoda; Mayu Sagisaka; Kairi Ishiguro; Takahiro Tomoda; Shinsuke Terazawa; Satoshi Shiota
    • Organizer
      9th Conference on New Development in Photodetection
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development of 64-channel LSI with ultrafast analog and digital signal processing dedicated for PC-CT with MPPCs2022

    • Author(s)
      Makoto Arimoto, Daichi Sato, Tomoya Mizuno, Kotaro Yoshiura, Kairi Ishiguro, Takahiro Tomoda, Hiroki Kawashima, Satoshi Kobayashi, Jun Kataoka, Mayu Sagisaka, Hirokazu Ikeda, Shinsuke Terazawa, Satoshi Shiota
    • Organizer
      9th Conference on New Development in Photodetection
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-color in-vivo imaging of mouse using novel photon counting CT with MPPC (2) : In vivo quantification and future prospects2022

    • Author(s)
      D. Sato, M. Arimoto, K. Yoshiura, T. Mizuno, H. Kawashima, S. Kobayashi, K. Murakami, K. Okumura, J. Kataoka, M. Sagisaka, S. Terazawa, S. Shiota
    • Organizer
      "2022 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room Temperature Semiconductor Detector Conference"
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 超高線量X線・ガンマ線イメージング2022

    • Author(s)
      有元 誠
    • Organizer
      SMART 2022 (Scintillator for Medical, Astroparticle and environmental Radiation Technologies)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 超高線量環境下でのガンマイメージャーの開発と性能評価2022

    • Author(s)
      水野 睦也、有元 誠、澤野 達哉、佐藤 大地、片岡 淳、塩田 諭、寺澤 慎祐
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Development of an MPPC-based gamma-ray detector onboard a radiation source imager under high-dose environments and initial performance results2022

    • Author(s)
      Tomoya Mizuno; Makoto Arimoto; Daichi Sato; Kotaro Yoshiura; Takahiro Tomoda; Kairi Ishiguro; Jun Kataoka; Tatsuya Sawano; Daisuke Yonetoku; Shinsuke Terazawa; Satoshi Shiota
    • Organizer
      9th Conference on New Development in Photodetection
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MPPC-based gamma-ray photon-counting imager for identifying radiation sources under high-dose environments2022

    • Author(s)
      T. Mizuno, M. Arimoto, D. Sato, K. Yoshiura, S. Terazawa, S. Shiota, J. Kataoka
    • Organizer
      "2022 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room Temperature Semiconductor Detector Conference"
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フォトンカウンティングCTの岩石試料への初適用例2022

    • Author(s)
      石黒歩、森下知晃、有元誠、森下知晃、有元誠、板野敬太、佐藤大地、吉浦宏大龍、水野睦也、寺澤慎祐、塩田諭
    • Organizer
      日本地球惑星科学連合2022年大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 岩石試料中の水貯蔵・輸送解明に向けたRANS中性子イメージング2022

    • Author(s)
      石黒 歩, 森下 知晃, 小林 知洋, 有元 誠
    • Organizer
      2022年度 RANS シンポジウム ついに始まった中性子現場利用 - 中性子のものづくり・インフラ産業での利用とサイエンスへの挑戦 -
    • Related Report
      2022 Annual Research Report
  • [Presentation] 次世代型カラーX線CTを用いた生体内イメージング(2)2022

    • Author(s)
      佐藤 大地、有元 誠、吉浦 宏大龍、水野 睦也、相賀 耕、川嶋 広貴、小林 聡、村上 和弘、片岡 淳、豊田 貴也、匂坂 真結、池田 博一、寺澤 慎祐、塩田 諭
    • Organizer
      第69回 応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 宇宙技術を次世代の産業用途へ -新たなイメージング技術への応用-2022

    • Author(s)
      有元 誠
    • Organizer
      令和3年度第3回先端ものづくり技術交流セミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 次世代MPPC型フォトンカウンティングCTの造影剤イメージングと臨床CTとの定量比較2021

    • Author(s)
      吉浦 宏大龍、有元 誠、佐藤 大地、水野 睦也、川嶋 広貴、小林 聡、片岡 淳、豊田 貴也、Sonia Dima、池田 博一、寺澤 慎祐、塩田 諭
    • Organizer
      第82回 応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Deep Learning Image Reconstructionを用いた低keV仮想単色X線画像の画質改善2021

    • Author(s)
      本村 嘉響、市川 勝弘、川嶋 広貴、豊原 勇理、牛丸 裕基
    • Organizer
      第49回 日本放射線技術学会秋季学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Evaluation of multicolor image quality using MPPC-based photon-counting CT compared with clinical dual-energy CT2021

    • Author(s)
      K. Yoshiura, M. Arimoto, D. Sato, T. Mizuno, H. Kawashima, S. Kobayashi, J. Kataoka, H. Kiji, T. Toyoda, S. D. Dima, H. Ikeda, S. Terazawa, S. Shiota
    • Organizer
      IEEE Nuclear science symposium and medical imaging conference (2021 IEEE NSS/MIC)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Performance estimate of MPPC-based PC-CT system and initial results of CT image contrast2021

    • Author(s)
      D. Sato, M. Arimoto, K. Yoshiura, T. Mizuno, H. Kawashima, S. Kobayashi, J. Kataoka, H. Kiji, T. Toyoda, S. Dima, H. Ikeda, S. Terazawa, S. Shiota
    • Organizer
      IEEE Nuclear science symposium and medical imaging conference (2021 IEEE NSS/MIC)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 次世代フォトンカウンティングCTによる多系統イメージングの性能評価2021

    • Author(s)
      佐藤 大地、有元 誠、吉浦 宏大龍、水野 睦也、川嶋 広貴、小林 聡、片岡 淳、木地 浩章、豊田 貴也、Dima Sonia、池田 博一、寺澤 慎祐、塩田 諭
    • Organizer
      応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 次世代カラーX線CTに向けたMPPC用64チャンネル高速LSIの開発と性能評価2020

    • Author(s)
      佐藤 大地、有元 誠、吉浦 宏大龍、川嶋 広貴、小林 聡、片岡 淳、丸橋 拓也、木地 浩章、豊田 貴也、池田 博一、寺澤 慎祐、塩田 諭
    • Organizer
      応用物理学会春季学術講演会
    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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