Development of a New Lead-shielding Device during Videofluoroscopic Swallowing Study

• Project/Area Number: 15K01387
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Rehabilitation science/Welfare engineering
• Research Institution: Tohoku Medical and Pharmaceutical University
• Principal Investigator: MORISHIMA YOSHIAKI 東北医科薬科大学, 東北医科薬科大学病院, 診療放射線技師 (00742496)
• Co-Investigator(Kenkyū-buntansha): 千田 浩一 東北大学, 災害科学国際研究所, 教授 (20323123)
• Research Collaborator: WATANABE Hiroshi 仙台リハビリテーション病院, 院長 ; MEGURO Yuko 東北医科薬科大学, 大学病院, 言語聴覚士
• Project Period (FY): 2015-04-01 – 2018-03-31
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000); Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 嚥下造影検査 / 散乱線 / 被ばく防護 / 従事者被ばく / 追加鉛防護具 / リハビリテーション医学 / 放射線防護

Outline of Final Research Achievements

We have developed a radiation protection device of the self-made "Scattered radiation protection Box" and "Slide type protective plate" for physician protection during Videofluoroscopic Swallowing Study. The additional filter (1.0, 2.0, 3.0 mm Al and 0.5 mm Cu) was combined with these two to examine the effect of protecting the scatter radiation with the human phantom. As a result, the scattered radiation removal rate at 150 cm above the floor was 65.4% to 79.4% respectively. The scattered radiation removal rate at 90 cm above the floor was 30.1% to 62.8%, respectively, and the effect of scattered radiation protection at the physician position was observed.
We believe that using a combination of scattered radiation protection box, sliding protective plate and additional filter is very effective for physician scatter radiation protection.

Research Products

• [Journal Article] Effectiveness of additional lead shielding to protect staff from scattering radiation during endoscopic retrograde cholangiopancreatography procedures (2018)
  • Author(s): Morishima Yoshiaki、Chida Koichi、Meguro Takayoshi
  • Journal Title: J Radiat Res. Volume: 59 Issue: 2 Pages: 225-232
  • DOI: 10.1093/jrr/rrx039
  • Peer Reviewed
• [Journal Article] Effectiveness of a New Lead-Shielding Device and Additional Filter for Reducing Staff and Patient Radiation Exposure During Videofluoroscopic Swallowing Study Using a Human Phantom (2017)
  • Author(s): Morishima Yoshiaki、Chida Koichi、Muroya Yoshikazu、Utsumi Yoshiya
  • Journal Title: Dysphagia. Volume: 33 Issue: 1 Pages: 109-114
  • DOI: 10.1007/s00455-017-9839-6
  • Peer Reviewed
• [Journal Article] 血管撮影室における従事者の放射線被ばく防護、放射線教育とその理解 (2017)
  • Author(s): 森島貴顕
  • Journal Title: ＲａｄＦａｎ Volume: 12 Pages: 83-85
• [Journal Article] Estimation of the dose of radiation received by patient and physician during a videofluoroscopic swallowing study (2016)
  • Author(s): Yoshiaki Morishima, Koichi Chida, Hiroshi Watanabe
  • Journal Title: Dysphagia Volume: 31(4) Pages: 151-155
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Need for radiation safety education for interventional cardiology staff,especially nurses (2016)
  • Author(s): Yoshiaki Morishima,Koichi Chida,Yoshiaki Katahira,Hatsue Seto,Hiroo Chiba,Koichi Tabayashi,
  • Journal Title: acta cardiologica Volume: 71(2) Pages: 151-155
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Presentation] ＥＲＣＰにおけるスタッフ被ばく低減のための追加鉛防護具の効果 (2017)
  • Author(s): 森島貴顕
  • Organizer: 第46回日本ＩＶＲ学会
• [Presentation] ＣＲＴ施行時の術者被ばく防護における追加鉛防護具の有用性 (2017)
  • Author(s): 森島貴顕
  • Organizer: 第26回日本心血管インターベンション治療学会学術集会
• [Presentation] 「いまさら聞けない、基本のキ」放射線被ばく (2017)
  • Author(s): 森島貴顕
  • Organizer: 第42回日本心血管インターベンション治療学会東北地方会
  • Invited
• [Presentation] 心カテ室における被ばく防護と放射線教育 (2017)
  • Author(s): 森島貴顕
  • Organizer: 第8回会津心臓病・心血管疾患研究会
  • Invited
• [Presentation] 嚥下造影検査（VF）時の術者の被ばく防護における追加鉛防護具の有用性 (2016)
  • Author(s): 森島貴顕 室谷嘉一 萱場文 千田浩一千葉浩生
  • Organizer: 第22回日本摂食・嚥下リハビリテーション学会学術集会
  • Place of Presentation: 朱鷺メッセ（新潟県・新潟市）
  • Year and Date: 2016-09-22
• [Presentation] 心カテ室における被ばく防護 (2016)
  • Author(s): 森島貴顕 片柳敬一 片平美明 千田浩一 千葉浩生
  • Organizer: 第15回仙台PTCAネットワークライブ
  • Place of Presentation: メルパルク仙台（宮城県・仙台市）
  • Year and Date: 2016-09-17
• [Presentation] ERCP術者被ばく防護における追加鉛防護具の有用性 (2015)
  • Author(s): 森島貴顕 目黒敬義 千田浩一 千葉浩生
  • Organizer: 第5回東北放射線医療技術学術大会
  • Place of Presentation: 山形テルサ（山形県山形市）
  • Year and Date: 2015-11-01
• [Presentation] 嚥下造影検査（VF)時における患者及び術者被ばく線量低減に関する検討 (2015)
  • Author(s): 森島貴顕 渡辺祐志 目黒祐子 千田浩一 千葉浩生
  • Organizer: 第21回日本摂食嚥下リハビリテーション学会学術大会
  • Place of Presentation: 京都国際会議場(京都府京都市）
  • Year and Date: 2015-09-12