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Development of High-Spatial-Resolution Multi-probe in vivo imaging by CdTe-SPECT

Research Project

Project/Area Number 20K16692
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionThe University of Tokyo

Principal Investigator

Yagishita Atsushi  東京大学, カブリ数物連携宇宙研究機構, 特任助教 (20626676)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords核医学 / SPECT / 多核種 / 分子イメージング / 生体イメージング / in vivoイメージング / マルチプローブ / センチネルリンパ節 / イメージング / CdTe半導体検出器
Outline of Research at the Start

シンチレーターで検出する現行の放射線生体イメージングではエネルギー(波長)分解能が低く、in vitroの蛍光イメージングで行われるマルチプローブ・イメージングは困難であり、一般に空間分解能も低いのが現状である。
我々はカドミウム・テルライド(CdTe)半導体検出器を用いることで、高空間分解能および高エネルギー分解能を有する新しいSPECTを開発した。この機器を用いて多核種を用いた場合にそれぞれの核種を明瞭に分離すると同時に定量するイメージング技術を確立する。また、高空間分解能も活かし、マウスを用いてがんのリンパ節微小転移層を検出するためのイメージング方法を検証し確立を目指す。

Outline of Final Research Achievements

We developed a new imaging and analysis method by applying the spectroscopic analysis technique in space observation using a SPECT device equipped with a CdTe semiconductor sensor, which has high energy resolution, and a collimator that provides high spatial resolution. We conducted proof-of-concept experiments. In vitro experiments demonstrated the feasibility of multi-isotope imaging with SPECT and subsequently showed the usefulness of this technique in biological imaging. We constructed a model of micrometastasis to sentinel lymph nodes and performed in vivo imaging using both a tumor tracer and a lymphatic tracer simultaneously. We were able to image a micrometastatic lesion as small as 700μm and lymphatic pathways in vivo.

Academic Significance and Societal Importance of the Research Achievements

放射線を使うことで動物体内における複数の薬剤の分布を詳しく、かつ、高精細に観察できる様にする技術を開発した。この技術は宇宙観測用の半導体センサーや解析技術を応用することで天体観測技術を生体内顕微鏡として応用したものである。これにより、小動物体内における複数の薬剤の分布をリアルタイムで同時に詳しく調べることができる様になった。この技術は医学研究や薬剤開発において役に立つと考えられる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (19 results)

All 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (9 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] York University(英国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] York University(英国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Development and Utility of an Imaging System for Internal Dosimetry of Astatine-211 in Mice2023

    • Author(s)
      Yagishita Atsushi、Katsuragawa Miho、Takeda Shin’ichiro、Shirakami Yoshifumi、Ooe Kazuhiro、Toyoshima Atsushi、Takahashi Tadayuki、Watabe Tadashi
    • Journal Title

      Bioengineering

      Volume: 11 Issue: 1 Pages: 25-25

    • DOI

      10.3390/bioengineering11010025

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dual-radionuclide in vivo imaging of micro-metastasis and lymph tract with submillimetre resolution2023

    • Author(s)
      Yagishita Atsushi、Takeda Shin’ichiro、Ohnuki Kazunobu、Katsuragawa Miho、Sampetrean Oltea、Fujii Hirofumi、Takahashi Tadayuki
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 19464-19464

    • DOI

      10.1038/s41598-023-46907-1

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] CdTe-DSD SPECT-I: An Ultrahigh-Resolution Multi-Isotope Tomographic Imager for Mice2023

    • Author(s)
      Takeda Shin’ichiro、Orita Tadashi、Yagishita Atsushi、Katsuragawa Miho、Yabu Goro、Tomaru Ryota、Moriyama Fumiki、Sugawara Hirotaka、Watanabe Shin、Mizuma Hiroshi、Kanayama Yousuke、Ohnuki Kazunobu、Fujii Hirofumi、Furenlid Lars R.、Takahashi Tadayuki
    • Journal Title

      IEEE Transactions on Radiation and Plasma Medical Sciences

      Volume: 7 Issue: 8 Pages: 860-870

    • DOI

      10.1109/trpms.2023.3291756

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 宇宙観測技術の核医学における分子イメージングへの展開2023

    • Author(s)
      柳下淳、桂川美穂、武田伸一郎、高橋忠幸
    • Journal Title

      Isotope News

      Volume: 785 Pages: 6-10

    • Related Report
      2022 Research-status Report
  • [Journal Article] 宇宙から核医学へ-宇宙観測技術で生体内を“見る”-2023

    • Author(s)
      桂川 美穂、武田伸一郎、柳下淳、織田忠、高橋忠幸
    • Journal Title

      放射線

      Volume: 48

    • Related Report
      2022 Research-status Report
  • [Journal Article] Simultaneous visualization of multiple radionuclides in vivo2022

    • Author(s)
      Atsushi Yagishita, Hideaki Matsumura, Tadashi Orita, Izumi O. Umeda, et al.,
    • Journal Title

      Nature biomedical engineering

      Volume: 2022 Issue: 5 Pages: 640-647

    • DOI

      10.1038/s41551-022-00866-6

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Pure Tungsten Collimator Manufactured Using 3D Printing Technology for the Evaluation of 211At Radionuclide Therapy2022

    • Author(s)
      Fujii, H., Ohnuki, K., Takeda, S. i., Katsuragawa, M., Yagishita, A., Yabu, G., Watanabe, S. & Takahashi, T.
    • Journal Title

      RADIOISOTOPES

      Volume: 71 Pages: 141-151

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] 宇宙を見る目で「がん」を捉える - 異分野の壁を超えるイメージング技術 - 核医学イメージングにおける進歩とバイオメディカルでの出口戦略.2023

    • Author(s)
      柳下 淳、武田 伸一郎、桂川 美穂、織田 忠、高橋 忠幸
    • Organizer
      量子医科学会第3回学術集会,
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 宇宙観測技術の 核医学イメージングへの展開.2023

    • Author(s)
      柳下淳, 桂川美穂, 武田伸一郎, , 織田忠, 大貫和信, 藤井博史, 高橋忠幸.
    • Organizer
      第82回癌学会学術総会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] At-211薬物動態イメージング法の開発.2023

    • Author(s)
      柳下淳、桂川美穂、武田伸一郎、大貫和信、高島大輝、藤井博史、高橋忠幸.
    • Organizer
      第17回日本分子イメージング学会総会・学術集会.
    • Related Report
      2023 Annual Research Report
  • [Presentation] CdTe-SPECTによる高空間分解能マルチプレクス・イメージング法の実現可能性に関する検討2022

    • Author(s)
      柳下 淳, 武田伸一郎, 桂川美穂, 大貫和信, 藤井博史, 高橋忠幸.
    • Organizer
      第16回日本分子イメージング学会総会・学術総会
    • Related Report
      2022 Research-status Report 2021 Research-status Report
  • [Presentation] Development of a hard X-ray camera for pharmacokinetic study in small animals2022

    • Author(s)
      Miho Katsuragawa, Atsushi Yagishita, Shin'ichiro Takeda, Takahiro Minami, Kazunobu Ohnuki, Hirohumi Fujii, Tadayuki Takahashi
    • Organizer
      13th Congress of the World Federation of Nuclear Medicine and Biology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Ultra-high-resolution multi-isotope tomography with CdTe-DSD SPECT II2022

    • Author(s)
      Shin'ichiro Takeda, Tadashi Orita, Miho Katsuragawa, Goro Yabu, Ryota Tomaru, Atsushi Yagishita, Izumi O. Umeda, Tadayuki Takahashi,Shin Watanabe, Fumiki Moriyama, Hirotaka Sugawara, Yousuke Kanayama, Hiroshi Mizuma, Kazunobu Ohnuki, Hirofumi Fujii, Lars R.Furenlid
    • Organizer
      13th Congress of the World Federation of Nuclear Medicine and Biology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of a high-sensitivity CdTe semiconductor imager with a parallel-hole collimator2022

    • Author(s)
      Miho Katsuragawa, Atsushi Yagishita, Shin'ichiro Takeda, Takahiro Minami, Kazunobu Ohnuki, Hirohumi Fujii, Tadayuki Takahashi,
    • Organizer
      9th Conference on New Developments in Photodetection (NDIP20)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Development of an ultra-high-resolution multi-probe CdTe SPECT,2022

    • Author(s)
      Shin'ichiro Takeda, Tadashi Orita, Miho Katsuragawa, Goro Yabu, Ryota Tomaru, Atsushi Yagishita, Izumi O. Umeda, Tadayuki Takahashi, Shin Watanabe, Fumiki Moriyama, Hirotaka Sugawara, Yousuke Kanayama, Hiroshi Mizuma, Kazunobu Ohnuki, Hirofumi Fujii, Lars R. Furenlid.
    • Organizer
      9th Conference on New Developments in Photodetection (NDIP20)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] CdTe SPECT を用いた担がんマウス微小リンパ節転移巣およびリンパ流路の2核種イメージング法の検証2021

    • Author(s)
      柳下 淳, 大貫 和信, 武田 伸一郎, 桂川 美穂, 織田 忠, 梅田 泉, サンペトラ オルテア, 藤井 博史, 高橋 忠幸
    • Organizer
      第23回SNNS研究会学術集会
    • Related Report
      2021 Research-status Report
  • [Remarks] 宇宙観測技術で分子イメージングの新技術を開発! -医学生物学研究での応用へ-

    • URL

      https://www.ipmu.jp/ja/20220405-CdTe

    • Related Report
      2022 Research-status Report 2021 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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