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Studies on the reduction of occupational exposure to magnetic fields using real-time motion and magnetic field recording system

Research Project

Project/Area Number 24790601
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Hygiene
Research InstitutionNational Institute of Occupational Safety and Health, Japan

Principal Investigator

YAMAGUCHI-SEKINO Sachiko  独立行政法人労働安全衛生総合研究所, 健康障害予防研究グループ, 主任研究員 (30548954)

Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
KeywordsMRI / 静磁界 / モーションキャプチャ
Research Abstract

Health effects due to the exposure to stray fields from magnetic resonance imaging (MRI) system are concerning problem in MR workers. However, the only recommended action to prevent these effects is to control body motions around the scanner. The present study focused on the setting of 30 cm approach restricted area in 3 T MRI system room as an action for the reduction of occupational static magnetic fields (SMFs) exposure. Subjects were requested to perform the mock motion of head MR examination with or without keeping this action. Exposed fields and motions were analyzed using real-time motion and magnetic field recording system. The maximum exposed SMFs were decreased in 25 % by this action and motion analysis indicated that work performances such as velocity, sojourn time, and moving distance have not changed significantly. These results suggest that this action is applicative for MR workers to reduce occupational SMF exposure without remarkable changes in work performances.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (14 results)

All 2014 2013 2012 Other

All Journal Article (3 results) (of which Peer Reviewed: 1 results) Presentation (11 results)

  • [Journal Article] 医療系職員の磁気共鳴画像技術の利用における安全意識調査2014

    • Author(s)
      山口さち子,中井敏晴
    • Journal Title

      労働安全衛生研究

      Volume: 7 Pages: 39-46

    • NAID

      130004953450

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Journal Article] Occupational exposure levels of static magnetic field during routine MRI examination in 3 T MR system2013

    • Author(s)
      Sachiko Yamaguchi-Sekino, Toshiharu Nakai, Shinya Imai, Shuhei Izawa, Tsutomu Okuno
    • Journal Title

      Bioelectromagnetics

      Volume: 35 Pages: 70-75

    • Related Report
      2013 Final Research Report
  • [Journal Article] Occupational exposure levels of static magnetic field during routine MRI examination in 3T MR system2013

    • Author(s)
      Sachiko Yamaguchi-Sekino, Toshiharu Nakai, Shinya Imai, Shuhei Izawa, Tsutomu Okuno
    • Journal Title

      Bioelectromagnetics

      Volume: 35 Issue: 1 Pages: 70-75

    • DOI

      10.1002/bem.21817

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Presentation] 電磁界と生体影響.建築電磁環境に関する2014

    • Author(s)
      山口さち子
    • Organizer
      研究発表会2014
    • Related Report
      2013 Final Research Report
  • [Presentation] 立ち入り禁止区域の設定によるMR検査準備中の職業磁界ばく露の変化について2014

    • Author(s)
      山口さち子
    • Organizer
      電磁界の人体防護に関わる評価技術動向調査専門委員会
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] MRの安全性2013

    • Author(s)
      山口さち子
    • Organizer
      社団法人日本磁気共鳴医学会基礎講座
    • Related Report
      2013 Final Research Report
  • [Presentation] 生物学的影響2013

    • Author(s)
      山口さち子
    • Organizer
      日本磁気共鳴医学会第16回講演会
    • Related Report
      2013 Final Research Report
  • [Presentation] Development of measurement system for motion and magnetic field–a potential safety training tool for MRI use2013

    • Author(s)
      Sachiko Yamaguchi-Sekino
    • Organizer
      BioEM2013
    • Related Report
      2013 Final Research Report
  • [Presentation] MR作業従事者の職業磁界ばく露と,安全衛生に関する意識調査2012

    • Author(s)
      山口さち子
    • Organizer
      生体電磁界解析・計測に関する公開討論会
    • Related Report
      2013 Final Research Report
  • [Presentation] 磁気共鳴画像装置(MRI)の安全に関する意識調査2012

    • Author(s)
      山口さち子,中井敏晴
    • Organizer
      第74回日本磁気共鳴医学会大会
    • Related Report
      2013 Final Research Report
  • [Presentation] Development of measurement system for motion and magnetic field – a potential safety training tool for MRI use

    • Author(s)
      Sachiko Yamaguchi-Sekino
    • Organizer
      BioEM2013
    • Place of Presentation
      Thessaloniki
    • Related Report
      2013 Annual Research Report
  • [Presentation] Occupational EMF exposure assessment - the situation in Japan.

    • Author(s)
      Sachiko Yamaguchi-Sekino
    • Organizer
      BioEM2013
    • Place of Presentation
      Thessaloniki
    • Related Report
      2013 Annual Research Report
  • [Presentation] 磁気共鳴画像装置(MRI)の安全に関する意識調査

    • Author(s)
      山口さち子,中井敏晴
    • Organizer
      日本磁気共鳴医学会
    • Place of Presentation
      京都
    • Related Report
      2012 Research-status Report
  • [Presentation] Development of measurement system for motion and magnetic field, a potential safety training tool for MRI use

    • Author(s)
      Sachiko Yamaguchi-Sekino
    • Organizer
      BioEM2013
    • Place of Presentation
      Thessaloniki, Greece
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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