Evaluation of occupational radiation exposure and influencing factors for healthcare workers during diagnostic computed tomography imaging.

IF 0.8 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Radiation protection dosimetry Pub Date : 2025-05-09 DOI:10.1093/rpd/ncaf049

Keisuke Nagamoto, Tomonori Kawachino, Yoshiki Suetsugu, Reika Urasaki, Saki Tokumoto, Masaoki Kohzaki, Shun-Ichi Nihei, Ryuji Okazaki

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引用次数: 0

Abstract

This study aimed to identify factors that increase radiation dose to computed tomography (CT) imaging assistants and to propose measures to minimize their effective dose, thereby improving radiation safety. Nine healthcare professionals (five intensivists and four radiological technologists) had their Hp(10) measured during 112 diagnostic CT procedures involving tasks categorized by proximity to the gantry: gantry proximal (e.g. bag-valve-mask (BVM) ventilation) and gantry distal (e.g. patient observation). Multiple regression analysis identified dose-length product (DLP) and tube current as significant predictors of effective dose of CT imaging assistants. The highest effective dose, 26 μSv, occurred during gantry proximal tasks. Intensivists received higher effective doses (35 μSv) than radiological technologists (19 μSv) because the CT imaging procedures they assisted with had higher DLP values. To reduce the effective dose, it is recommended to implement low-dose imaging protocols, optimize imaging coverage, and use radiation protection clothing, such as lead aprons, which significantly reduce Hp(10).

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诊断性计算机断层成像过程中卫生保健工作者职业辐射暴露及其影响因素的评价。

本研究旨在找出增加计算机断层扫描（CT）成像助手辐射剂量的因素，并提出降低其有效剂量的措施，从而提高辐射安全性。9名医疗保健专业人员（5名重症医师和4名放射技术人员）在112次诊断性CT检查中测量了他们的Hp(10)，这些检查的任务按靠近门框的程度分类：门框近端（如气囊-瓣膜-面罩（BVM）通气）和门框远端（如患者观察）。多元回归分析发现，剂量长度积（DLP）和管电流是CT成像助手有效剂量的重要预测因子。最高有效剂量为26 μSv，发生在龙门近端任务中。强化医生接受的有效剂量（35 μSv）高于放射技师（19 μSv），因为他们辅助的CT成像程序具有更高的DLP值。为了降低有效剂量，建议采用低剂量成像方案，优化成像覆盖范围，并使用辐射防护服，如铅围裙，这可以显著降低Hp（10）。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Radiation protection dosimetry 环境科学-公共卫生、环境卫生与职业卫生

CiteScore

1.40

自引率

10.00%

发文量

223

审稿时长

6-12 weeks

期刊介绍： Radiation Protection Dosimetry covers all aspects of personal and environmental dosimetry and monitoring, for both ionising and non-ionising radiations. This includes biological aspects, physical concepts, biophysical dosimetry, external and internal personal dosimetry and monitoring, environmental and workplace monitoring, accident dosimetry, and dosimetry related to the protection of patients. Particular emphasis is placed on papers covering the fundamentals of dosimetry; units, radiation quantities and conversion factors. Papers covering archaeological dating are included only if the fundamental measurement method or technique, such as thermoluminescence, has direct application to personal dosimetry measurements. Papers covering the dosimetric aspects of radon or other naturally occurring radioactive materials and low level radiation are included. Animal experiments and ecological sample measurements are not included unless there is a significant relevant content reason.