Lifetime cancer risks from occupational radiation exposure among workers at interventional radiology departments
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ORIGINAL ARTICLE
Lifetime cancer risks from occupational radiation exposure among workers at interventional radiology departments Won Jin Lee1 · Ye Jin Bang1 · Eun Shil Cha1 · Young Min Kim2 · Sung Bum Cho3 Received: 13 February 2020 / Accepted: 25 August 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Purpose Interventional medical radiation workers represent an under-studied population worldwide, although they receive relatively high occupational radiation doses. This study aimed to estimate the lifetime cancer risk from occupational radiation exposure among workers at interventional radiology departments. Methods A field survey of interventional medical workers in nationwide branches of the Korean Society of Interventional Radiology was conducted in 2017. Organ-specific radiation doses were estimated using national dose registry data and conversion coefficients provided by the International Commission on Radiological Protection. Lifetime attributable risk (LAR) and lifetime fractional risk (LFR) were calculated based on realistic exposure scenarios using a radiation risk assessment tool. Results LARs from occupational radiation exposure until the age of retirement for all cancers combined were 338 (90.3– 796.1), 121 (33.5–288.7), and 156 (41.1–390.6) per 100,000 individuals for male radiologists, male radiologic technologists, and female nurses, respectively. LFR for all cancers combined ranged from 0.22% (0.06–0.53) to 0.63% (0.17–1.47). Regarding the organ site, the highest LAR and LFR among all groups were observed for thyroid cancer. Conclusion This study provides timely evidence of potential cancer burden from the current levels of occupational radiation exposure among workers at interventional radiology departments. The risks varied by occupational groups, and workers, particularly interventional radiologists, need to be carefully monitored for radiation. Keywords Health professionals · lifetime attributable risk · Neoplasm · Occupation
Introduction Medical radiation workers at interventional radiology departments are exposed to higher radiation levels than those who perform conventional radiography (ICRP 2000). Radiation risk has been a concern for interventional medical workers because of the increased use of these procedures, Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00420-020-01569-8) contains supplementary material, which is available to authorized users. * Won Jin Lee [email protected] 1
Department of Preventive Medicine, Korea University College of Medicine, 73, Goryeodae‑ro, Seongbuk‑gu, Seoul 02841, South Korea
2
Department of Statistics, Kyungpook National University, Daegu, South Korea
3
Department of Radiology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea
and thus there is an urgent need for implementing a culture of radiation protection during interventional fluoroscopy procedures (Bartal et al. 2016). However, only a few studies have focused
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