Development of dose monitoring system and visualization of dose distributions, for the exposure reduction in interventional radiology

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K08203
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 52040:Radiological sciences-related
• Research Institution: Kumamoto University
• Principal Investigator: Araki Fujio 熊本大学, 大学院生命科学研究部(保), 教授 (00295148)
• Co-Investigator(Kenkyū-buntansha): 大野 剛 熊本大学, 大学院生命科学研究部(保), 助教 (20646971)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 血管内治療 / 皮膚線量 / 面積線量計 / モンテカルロ計算 / 被ばく線量

Outline of Final Research Achievements

In this study, we developed entrance skin dose (ESD) monitoring system based on the direct measurement of ESD in Interventional Radiology (IVR) and the estimation of ESD by an air kerma area-product (KAP) meter built into IVR. Specifically, the following items were studied. (1) Establishment of a simple direct ESD measurement method using a water-equivalent solid phantom, (2) ESD measurements and the dose comparison of treatment sites (head and abdomen) using different IVR systems, (3) ESD estimation using the KAP, (3) Estimation of ESD by x-ray beam modeling of IVR systems, (5) Estimation of ESD by radiophotoluminescent glass dosimeter and an optically stimulated luminescent dosimeter for ESD estimation.

Free Research Field

放射線線量計測学

Academic Significance and Societal Importance of the Research Achievements

血管内治療(Interventional Radiology: IVR)における皮膚線量の簡便で直接測定による標準計測法を確立し，IVR手技中の皮膚線量リアルタイムモニタシステムを開発する．また，各IVR装置による治療部位の皮膚線量計測とモンテカルロ計算による体内線量分布の可視化から照射条件の適正化を行い，被ばく低減を図る．