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Cataract risk of physician by Over-Table type X-ray TV system

Research Project

Project/Area Number 17K09142
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Epidemiology and preventive medicine
Research InstitutionOsaka Butsuryo University

Principal Investigator

Shinya Imai  大阪物療大学, 保健医療学部, 講師 (00783515)

Co-Investigator(Kenkyū-buntansha) 佐藤 斉  茨城県立医療大学, 保健医療学部, 教授 (90285057)
小縣 裕二  大阪物療大学, 保健医療学部, 教授 (60281127)
丹喜 信義  大阪物療大学, 保健医療学部, 助教 (60441573)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Keywordsオーバーテーブル型X線TV装置 / ERCP / 水晶体専用線量計 / 術者被ばく / 白内障 / ICRP / 3㎜線量当量 / 水晶体被ばく / 個人線量計 / 空間線量 / 散乱線 / 水晶体等価線量 / 3mm線量当量計 / 照射野 / 放射線防護メガネ / 散乱線防護カーテン / IVR / オーバーテーブル / 術者
Outline of Final Research Achievements

The International Radiological Protection Committee (ICRP) recommended in 2011 that the dose limit of the lens of the eye should not exceed 20 mSv in average for 5 years, and 50 mSv per year.For Over-tube type X-ray television system in particular, the dose exposure of the physician's lens may increase.In order to examine the dose of X-ray radiation that physicians are exposed to during endoscopic retrograde cholangiopancreatography (ERCP), X-ray exposure to the eye was measured in a phantom model with or without radiation-protective devices.
In this study, the radiation dose to the eyes was found to be 3.70 mSv for the left eye and 1.50 mSv for the right eye.Radiation exposure to the eye was reduced by 78.1% when the Pb glasses were attached and by 96.7% when radiation-protective curtains were in place.

Academic Significance and Societal Importance of the Research Achievements

オーバーテーブル型のX線TV装置を使用するERCPでは、アンダーテーブル型と比べて術者の水晶体への被ばく線量が非常に高くなることや左右の眼によっても線量に違いがみられることが確認出来た。また、一検査あたりの被ばく線量から線量限度20mSv/年に達する検査回数は約14回と試算出来たため、年間のERCPにおける施行限度に関する指標となり得る。
また、X 線TV 装置用散乱線防護カーテンの装着や放射線防護メガネの着用によって術者への被ばくが著しく低下することが確認出来たため、今後すべての放射線検査に活用していくことを強く推奨する。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018 2017

All Journal Article (5 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results)

  • [Journal Article] Influence of Ambient White Light Emitted Diode (LED) on the Radiochromic Film2020

    • Author(s)
      Toshizo KATSUDA, Atsushi NOGUCHI, Nobuyoshi TANKI, Shinya IMAI
    • Journal Title

      大阪物療大学紀要

      Volume: 8 Pages: 1-9

    • NAID

      40022265188

    • Related Report
      2019 Annual Research Report
  • [Journal Article] IVR透視下における散乱線の分布特性2020

    • Author(s)
      木村 勇登、吉川 武志、長田 大和、今井 信也
    • Journal Title

      大阪物療大学紀要

      Volume: 8 Pages: 39-42

    • NAID

      40022265266

    • Related Report
      2019 Annual Research Report
  • [Journal Article] トモシンセシスを用いたマンモグラフィにおける被ばく線量の推定について2020

    • Author(s)
      田中 梨夏子、阿部 愛海、羽紫 奈津子、今井 信也
    • Journal Title

      大阪物療大学紀要

      Volume: 8 Pages: 33-38

    • NAID

      40022265259

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Computed Tomography: Return on Investment and Regional Disparity Factor Analysis2019

    • Author(s)
      Imai Shinya、Akahane Manabu、Imamura Tomoaki
    • Journal Title

      Frontiers in Public Health

      Volume: 6 Pages: 1-8

    • DOI

      10.3389/fpubh.2018.00380

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ERCPにおける簡易散乱線防護クロスによる被曝低減の検討2017

    • Author(s)
      大槻勇一朗, 田村諒, 奥山弘也, 今井信也
    • Journal Title

      大阪物療大学紀要

      Volume: 第6巻 Pages: 39-42

    • NAID

      130007608585

    • Related Report
      2017 Research-status Report
  • [Presentation] Optimization of lens exposure measurement in IVR2020

    • Author(s)
      Shinya Imai, Nobuyoshi Tanki, Hitoshi Sato, Yuji Ogata, Eiichi Kinoshita, Kensuke Fujiwara, Toshizo Katsuda
    • Organizer
      European Congress of Radiology 2020
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] トモシンセシスを用いたマンモグラフィにおける被ばく線量の推定について2019

    • Author(s)
      田中梨夏子、阿部愛海、羽紫奈津子、今井信也
    • Organizer
      大阪府診療放射線技師会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] IVR透視下における散乱線の分布特性2019

    • Author(s)
      木村勇登、吉川武志、長田大和、今井信也
    • Organizer
      大阪府診療放射線技師会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] IVRにおける個人線量計装着位置の最適化2019

    • Author(s)
      木下 英一、藤原 謙介、今井 信也
    • Organizer
      大阪府診療放射線技師会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Occupational eye lens dose in endoscopic retrograde cholangiopancreatography using a dedicated eye lens dosimeter: A phantom study2018

    • Author(s)
      Shinya Imai、Yuji Ogata、Nobuyoshi Tanki、Hitoshi Sato、Kazuma Tameike、Atsushi Noguchi、Toshizo Katsuda
    • Organizer
      The Radiological Society of North America 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Occupational eye dose in endoscopic retrograde cholangiopancreatography using 3 mm equivariant dosimeters -phantom study-2018

    • Author(s)
      S Imai, N Tanki, Y Ogata, H Sato, K Tameike, A Noguchi, H Okuyama, M Tamura, T Katsuda
    • Organizer
      ECR2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 3mm線量当量線量計を用いたIVR術者の水晶体等価線量の測定2018

    • Author(s)
      今井信也
    • Organizer
      第74回日本放射線技術学会総会学術大会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] IVR術者の白内障リスクと予防策2017

    • Author(s)
      今井信也, 赤羽学, 今村知明
    • Organizer
      第76回日本公衆衛生学会総会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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