Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, Maryland.
Independent consultant, Weddington, North Carolina.
J Vasc Interv Radiol. 2022 Mar;33(3):219-224.e2. doi: 10.1016/j.jvir.2021.10.027. Epub 2021 Nov 5.
To describe the range of occupational badge dose readings and annualized dose records among physicians performing fluoroscopically guided interventional (FGI) procedures using job title information provided by the same 3 major medical institutions in 2009, 2012, and 2015.
The Radiation Safety Office of selected hospitals was contacted to request assistance with identifying physicians in a large commercial dosimetry database. All entries judged to be uninformative of occupational doses to FGI procedure staff were excluded. Monthly and annualized doses were described with univariate statistics and box-and-whisker plots.
The dosimetry data set of interventional radiology staff contained 169 annual dose records from 77 different physicians and 698 annual dose records from 455 nonphysicians. The median annualized lens dose equivalent values among physicians (11.9 mSv; interquartile range [IQR], 6.9-20.0 mSv) was nearly 3-fold higher than those among nonphysician medical staff assisting with FGI procedures (4.0 mSv; IQR, 1.8-6.7 mSv) (P < .001). During the study period, without eye protection, 25% (23 of 93) of the physician annualized lens dose equivalent values may have exceeded 20 mSv; for nonphysician medical staff, this value may have been exceeded 3.5% (6 of 173) of the time. However, these values did not account for eye protection.
The findings from this study highlight the importance of mitigating occupational dose to the eyes of medical staff, particularly physicians, performing or assisting with FGI procedures. Training on radiation protection principles, the use of personal protective equipment, and patient radiation dose management can all help ensure that the occupational radiation dose is adequately controlled.
描述 2009 年、2012 年和 2015 年，使用来自 3 家主要医疗机构的相同职称信息，对进行荧光透视引导介入（FGI）程序的医师的职业徽章剂量读数和年度剂量记录进行范围描述。
联系选定医院的放射防护办公室，请求协助在大型商业剂量计数据库中识别医师。排除所有被认为对 FGI 手术人员职业剂量无信息的记录。采用单变量统计和箱线图描述每月和年度剂量。
介入放射科工作人员的剂量计数据集包含 77 名不同医师的 169 份年度剂量记录和 455 名非医师工作人员的 698 份年度剂量记录。医师的年度晶状体剂量当量中位数（11.9 mSv；四分位间距 [IQR]，6.9-20.0 mSv）几乎是协助 FGI 程序的非医师医疗人员的 3 倍（4.0 mSv；IQR，1.8-6.7 mSv）（P <.001）。在研究期间，在没有眼部防护的情况下，25%（23 名中的 93 名）医师的年度晶状体剂量当量可能超过 20 mSv；对于非医师医疗人员，这个值可能有 3.5%（173 名中的 6 名）的时间超过。然而，这些值没有考虑眼部防护。
本研究结果强调了减轻进行或协助 FGI 程序的医疗人员（特别是医师）眼部职业剂量的重要性。辐射防护原则培训、个人防护设备的使用以及患者辐射剂量管理都有助于确保职业辐射剂量得到充分控制。
