铅眼镜对介入手术中职业人员防护效果的研究现状

摘要/Abstract

摘要： 眼晶体剂量限值的降低,引起了人们对眼晶体剂量监测、评价和防护的关注。通过近期国内外的研究工作,本文从蒙卡计算、基于人体模型或临床实践的实验测量深入调查了铅眼镜的防护效果,强调了铅眼镜对介入手术中职业人员眼晶体防护的重要性。基于铅眼镜防护效果的研究现状,分析了防护效果的影响因素:通过铅眼镜和眼睛间隙的射线,是眼晶体剂量的主要来源;决定铅眼镜防护效果的并不是射线能量、铅当量厚度、镜片面积等因素,而是眼镜结构、佩戴间隙、投照角度、位置布局、人员姿态等几何条件。调研分析铅眼镜防护效果旨在为眼晶体防护研究和临床实践提供参考。

关键词: 铅眼镜, 介入手术, 职业人员, 剂量降低因子

Abstract: The reduced occupational dose limit for eye lens has lead to extensive attentions on the dose monitoring, evaluation, and protection for eye lens. The importance of lead glasses for radiation protection of the eye lens of medical workers in interventional procedures has been stressed by recent studies, where Monte Carlo calculations and experimental measurements based on anthropomorphic phantom or clinical practice were used to investigate the protection effectiveness of lead glasses. In this work, research status on protection effectiveness of lead glasses was summarized and the influencing factors analyzed. The dose to the eye lens is mainly contributed by radiation exposure to the eyes through the gap between the glasses and eyes. The geometry conditions such as glasses shape, air gap, beam projection, position arrangement and operator postures, rather than the beam energy, lead equivalent thickness and size of glasses, are the decisive factors for protection effectiveness of lead glasses. This analysis of influencing factors aimed to provide references for the research and clinical practices of eye lens protection.

Key words: lead glasses, interventional procedure, occupational staff, dose reduction factor

中图分类号:

R143

于伟跃, 陈法国, 韩毅, 李国栋, 杨明明. 铅眼镜对介入手术中职业人员防护效果的研究现状[J]. 辐射防护, 2017, 37(6): 507-514.

Yu Weiyue, Chen Faguo, Han Yi, Li Guodong, Yang Mingming. Research status on effectiveness of lead glasses for occupational protection in interventional procedures[J]. RADIATION PROTECTION, 2017, 37(6): 507-514.

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