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논문 기본 정보

자료유형
학술저널
저자정보
Martin Law (Proton Therapy Pte Ltd) Dickon H.L. Ng (Department of Physics, The Chinese University of Hong Kong, NT, SAR, Hong Kong, China) Do-Kun Yoon (Proton Therapy Pte Ltd) Shih-Kien Djeng (Proton Therapy Pte Ltd)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제4호
발행연도
2021.4
수록면
1,318 - 1,322 (5page)
DOI
https://doi.org/10.1016/j.net.2020.09.013

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초록· 키워드

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To unveil and delineate the elements applicable to the radiation protection of a femoral entry shield,calculate its mass attenuation coefficient, and demonstrate its dose reduction efficacy for interventionalradiologist performing transarterial embolization (TAE) of ruptured hepatocellular carcinoma (rHCC). Thelead equivalency of the shield was firstly validated. Electron microscopy was used to confirm the femoralentry shield being lead-free and to analyze the elemental content, with which the mass attenuationcoefficient of the shield was calculated. An adult phantom, irradiated at the upper abdomen to simulatethe TAE of rHCC, was used together with a dosimeter attached to the palm of a hand phantom. The doserates at the hand phantom were measured, with the rHCC clinical protocol, without and with the femoralentry shield placed over the right femoral access site of the adult phantom. Without using the shield, theaverage hand dose rate was measured to be 0.325 mSv/sec. While using the shield, it was determined tobe 0.110 mSv/sec. There was significant 66% dose reduction to the hand dose of IRs performing angiographicintervention with the femoral entry shield

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