Division of Preventive, Occupational and Aerospace Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA.
Health Phys. 2013 Feb;104(2 Suppl 1):S11-6. doi: 10.1097/HP.0b013e318271b6a6.
Three protective eyewear models were evaluated to determine effectiveness in reducing radiation dose to a fluoroscopist's eyes. The performance of the protective eyewear was measured using radiation dosimeters in a fluoroscopy suite. An Eyewear Protection Factor was determined for each model in each of three exposure orientations. The protection was strongly influenced by the location of the radiation source. When the source was in front of the fluoroscopist, the lead equivalence was important. When the source was to the side of the fluoroscopist, the cross section of the side shield had a significant influence on protection. Protective eyewear selection needs to include consideration of job task and head orientation to the radiation source as well as the possibility that face shape and eyewear fit may also impact the radiation dose to the eye.
三种防护眼镜模型进行了评估,以确定它们在降低放射科医生眼部辐射剂量方面的有效性。在透视套件中使用辐射剂量计测量防护眼镜的性能。为每个模型在三个暴露方向中的每一个确定了一个防护眼镜保护因子。保护效果受放射源位置的强烈影响。当放射源在放射科医生的前面时,铅当量很重要。当放射源在放射科医生的侧面时,侧面屏蔽的横截面积对保护有重大影响。防护眼镜的选择需要考虑工作任务和头部相对于放射源的方向,以及面部形状和眼镜适配度也可能影响眼部辐射剂量的可能性。