Optimization of radiation protection for medical staff during interventional radiology; Radiation protection for the lens of the eye

2018 Fiscal Year Final Research Report

• Project/Area Number: 16K10331
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Radiation science
• Research Institution: Fujita Health University
• Principal Investigator: Yokoyama Sumi 藤田医科大学, 保健学研究科, 准教授 (20354699)
• Co-Investigator(Kenkyū-buntansha): 黒澤 忠弘 国立研究開発法人産業技術総合研究所, 計量標準総合センター, 研究グループ長 (90356949)
• Co-Investigator(Renkei-kenkyūsha): TOYAMA Hiroshi ; SUZUKI Shoichi ; KATO Ryoichi
• Project Period (FY): 2016-04-01 – 2019-03-31
• Keywords: IVR / 水晶体 / 被ばく低減 / 防護 / 最適化

Outline of Final Research Achievements

The ICRP recommended a new dose limit to the lens of the eye for workers in planned exposure situations in April 2011. This study objective is to optimize radiation protection for the lens of the eye for medical stuff such as interventional radiologists who are high dose level workers. Research has been carried out from both the experimental research using phantoms to estimate the dose for the medical stuff, and the dose measurement for medical staff at the actual clinical fields. As a result, the dose to the lens of the eye for the IVR medical stuff can be reduced by appropriately using existing protective, although it is higher than that for other worker. Thus medical stuff would achieved compliance with new ICRP dose limit to the lens. We also tried to develop a database for the dose and protection of the IVR medical stuff to make them learn easy protection methods.

Free Research Field

放射線防護

Academic Significance and Societal Importance of the Research Achievements

医療従事者の中でも比較的被ばく線量が高いとされるIVR術者の水晶体の等価線量評価法を確立し、線量の実態を把握、あわせて既存の防護方法での被ばく低減の可能性を示すことで、わが国の規制において水晶体の等価線量限度が引き下げられた場合にも、より現実的な方法により、規制運用に迅速対応でき、法令遵守を可能にすることができるものと考えられる。また、防護プログラムの開発により、医療従事者の放射線防護への意識を高めることができ、より被ばく低減が進むものと考えられる。