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2019 Fiscal Year Annual Research Report

Optical/gamma hybrid laparoscope research and development

Research Project

Project/Area Number 19K21121
Allocation TypeMulti-year Fund
Research InstitutionNational Institutes for Quantum and Radiological Science and Technology

Principal Investigator

KANG HANGYU  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 先進核医学基盤研究部, 研究員(任常) (90824467)

Project Period (FY) 2019-04-01 – 2020-03-31
KeywordsHybrid laparoscope / Sentinel lymph node / Gamma imaging / Optical imaging
Outline of Annual Research Achievements

The goal of this study is to develop a novel hybrid optical/gamma laparoscope which can visualize the sentinel lymph node (SLN) during the laparoscopic cancer surgery. For this project, two different modalities, one is the gamma camera, and the other is optical imaging system should be developed and integrated into a single laparoscope. The gamma camera part was developed using tungsten pinhole collimator, GAGG crystal and SiPM 8x8 array. The SiPM signals were multiplexed by using a custom-made front-end electronics. The output of the front-end electronics were digitized by using CAMAC DAQ system. The 2D gamma image was generated after the correction of the detection non-uniformity of the each GAGG crystal. The SLN phantom with the diameter of 10 mm filled with 99mTc was scanned by the developed gamma camera for 1 min. The SLN phantom was clearly visualized by the gamma camera with the pinhole diameters of 1 mm and 2 mm. For the optical imaging part, the optical system design, and the mechanical jig designs were finished. The optical imaging system is under development. In the near future, the hybrid optical/gamma laparoscope will be developed and performance will be evaluated with a phantom study.

  • Research Products

    (3 results)

All 2019 Other

All Journal Article (1 results) Presentation (1 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Journal Article] Optical imaging for the characterization of radioactive carbon and oxygen ion beams2019

    • Author(s)
      Kang Han Gyu、Yamamoto Seiichi、Takyu Sodai、Nishikido Fumihiko、Mohammadi Akram、Horita Ryo、Sato Shinji、Yamaya Taiga
    • Journal Title

      Physics in Medicine & Biology

      Volume: 64 Pages: 115009~115009

    • DOI

      10.1088/1361-6560/ab1ccf

  • [Presentation] Optical Imaging for the Energy Spread Estimation of Radioactive Oxygen Ion Beam - Experimental and GATE Simulation Results2019

    • Author(s)
      Han Gyu Kang
    • Organizer
      2019 IEEE NSS/MIC
    • Int'l Joint Research
  • [Remarks] Report on PET Imaging Physics Research

    • URL

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

URL: 

Published: 2021-01-27  

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