Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Rockville, Maryland.
Center for Science and Technology, Radiation Protection Division, Office of Radiation and Indoor Air, U.S. Environmental Protection Agency, Washington D.C.
J Vasc Interv Radiol. 2024 Jul;35(7):1057-1065.e4. doi: 10.1016/j.jvir.2024.03.032. Epub 2024 Apr 9.
To summarize dose trends from 1980 to 2020 for 19,651 U.S. Radiologic Technologists who reported assisting with fluoroscopically guided interventional procedures (FGIPs), overall and by work history characteristics.
A total of 762,310 annual personal dose equivalents at a 10-mm reference depth (doses) during 1980-2020 for 43,823 participants of the U.S. Radiologic Technologists (USRT) cohort who responded to work history questionnaires administered during 2012-2014 were summarized. This population included 19,651 technologists who reported assisting with FGIP (≥1 time per month for ≥12 consecutive months) at any time during the study period. Doses corresponding to assistance with FGIP were estimated in terms of proximity to patients, monthly procedure frequency, and procedure type. Box plots and summary statistics (eg, medians and percentiles) were used to describe annual doses and dose trends.
Median annual dose corresponding to assistance with FGIP was 0.65 mSv (interquartile range [IQR], 0.60-1.40 mSv; 95th percentile, 6.80). Higher occupational doses with wider variability were associated with close proximity to patients during assistance with FGIP (median, 1.20 mSv [IQR, 0.60-4.18 mSv]; 95th percentile, 12.66), performing ≥20 FGIPs per month (median, 0.75 mSv [IQR, 0.60-2.40 mSv]; 95th percentile, 9.44), and assisting with high-dose FGIP (median, 0.70 mSv [IQR, 0.60-1.90 mSv]; 95th percentile, 8.30).
Occupational doses corresponding to assistance with FGIP were generally low but varied with exposure frequency, procedure type, and proximity to patients. These results highlight the need for vigilant dose monitoring, radiation safety training, and proper protective equipment.
总结 1980 年至 2020 年期间 19651 名美国放射技师在协助荧光透视引导介入程序（FGIP）方面的剂量趋势，总体上和按工作史特征分类。
对在 1980-2020 年期间参加美国放射技师（USRT）队列的 43823 名参与者的 10 毫米参考深度（剂量）的每年个人剂量当量（剂量）进行了总结，其中有 762310 个剂量，这些参与者在 2012-2014 年期间对工作史问卷做出了回应。该人群包括 19651 名技术人员，他们在研究期间的任何时间都报告协助过 FGIP（每月至少 1 次，每次至少 12 个月）。与协助 FGIP 相关的剂量是根据与患者的距离、每月程序频率和程序类型来估计的。箱线图和汇总统计数据（例如，中位数和百分位数）用于描述每年的剂量和剂量趋势。
与协助 FGIP 相关的中位年剂量为 0.65 毫希（四分位距[IQR]，0.60-1.40 毫希；95 百分位，6.80）。在协助 FGIP 期间与患者近距离接触时，职业剂量更高且变化更大（中位数，1.20 毫希[IQR，0.60-4.18 毫希；95 百分位，12.66），每月进行≥20 次 FGIP（中位数，0.75 毫希[IQR，0.60-2.40 毫希；95 百分位，9.44），以及协助高剂量 FGIP（中位数，0.70 毫希[IQR，0.60-1.90 毫希；95 百分位，8.30）。
与协助 FGIP 相关的职业剂量通常较低，但与暴露频率、程序类型和与患者的距离有关。这些结果突出了对剂量监测、辐射安全培训和适当防护设备的需求。
