Department of Radiology, Mayo Clinic, Rochester, Minnesota.
Department of Cardiovascular Diseases, Mayo Clinic, Rochester, Minnesota.
Br J Radiol. 2021 Oct 1;94(1126):20210436. doi: 10.1259/bjr.20210436.
Data suggest that radiation-induced cataracts may form without a threshold and at low-radiation doses. Staff involved in interventional radiology and cardiology fluoroscopy-guided procedures have the potential to be exposed to radiation levels that may lead to eye lens injury and the occurrence of opacifications have been reported. Estimates of lens dose for various fluoroscopy procedures and predicted annual dosages have been provided in numerous publications. Available tools for eye lens radiation protection include accessory shields, drapes and glasses. While some tools are valuable, others provide limited protection to the eye. Reducing patient radiation dose will also reduce occupational exposure. Significant variability in reported dose measurements indicate dose levels are highly dependent on individual actions and exposure reduction is possible. Further follow-up studies of staff lens opacification are recommended along with eye lens dose measurements under current clinical practice conditions.
数据表明,放射性白内障的形成可能没有阈值,并且在低剂量辐射下就会发生。介入放射学和心脏病学荧光透视引导程序涉及的工作人员可能会接触到可能导致晶状体损伤和混浊发生的辐射水平。许多出版物提供了各种荧光透视程序的晶状体剂量估计值和预测的年剂量值。用于眼部晶状体辐射防护的工具包括附件屏蔽、窗帘和眼镜。虽然有些工具很有价值,但其他工具对眼睛的保护有限。降低患者的辐射剂量也将减少职业暴露。报告的剂量测量值存在显著差异,表明剂量水平高度取决于个人行为,并且可以减少暴露。建议对工作人员晶状体混浊进行进一步的随访研究,并在当前临床实践条件下进行晶状体剂量测量。