scholarly journals 1275Lifetime cancer risks from occupational radiation exposure among workers at interventional radiology departments

2021 ◽  
Vol 50 (Supplement_1) ◽  
Author(s):  
Won Jin Lee ◽  
Ye Jin Bang ◽  
Young Min Kim ◽  
Sung Bum Cho
Keyword(s):  
Interventional Radiology ◽  
Radiation Exposure ◽  
Radiation Risk ◽  
Radiological Protection ◽  
Radiation Doses ◽  
Cancer Risks ◽  
Potential Health ◽  
Occupational Radiation Exposure ◽  
Radiologic Technologists ◽  
Occupational Radiation

Abstract Background 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. Conclusions 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. Key messages We projected lifetime cancer risks from occupational radiation exposure among workers at interventional radiology departments in South Korea. Particularly, interventional radiologists, should be prioritized for careful protection from the potential health risks of occupational radiation exposure.

scholarly journals Occupational radiation exposure and excess additive risk of cataract incidence in a cohort of US radiologic technologists

2019 ◽  
Vol 77 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Mark P Little ◽  
Elizabeth K Cahoon ◽  
Cari M Kitahara ◽  
Steven L Simon ◽  
Nobuyuki Hamada ◽  
...  
Keyword(s):  
Public Health ◽  
Relative Risk ◽  
Cataract Surgery ◽  
Radiation Exposure ◽  
Additive Models ◽  
Uvb Radiation ◽  
Occupational Radiation Exposure ◽  
Radiologic Technologists ◽  
Additive Risk ◽  
Occupational Radiation

ObjectivesPrevious analyses of cataract in radiation-exposed populations have assessed relative risk; radiogenic excess additive risk (EAR), arguably of more public health importance, has not been estimated. Previous analysis of a large prospective cohort of US radiologic technologists (USRT) quantified excess relative risk of cataract in relation to occupational radiation dose. We aim to assess EARs of cataract.MethodsWe estimated EARs of cataract/cataract surgery in the USRT cohort using generalised additive models in relation to occupational radiation exposure, and assessed risk modification by a priori-selected cataract risk factors (diabetes, body mass index, smoking, race, sex, birth-year, ultraviolet B (UVB) radiation exposure).ResultsThere were 11 345 cataract diagnoses and 5440 of cataract surgery during 832 462 and 888 402 person-years of follow-up, respectively. Cumulative occupational radiation exposure was associated with self-reported cataract, but not with cataract surgery, with EAR/104 person-year Gy=94 (95% CI: 47 to 143, p<0.001) and EAR/104 person-year Gy=13 (95% CI: <0 to 57, p=0.551), respectively. There was marked (p<0.001) variation of EAR by age and by diabetes status, with risk higher among persons ≥75 years and diabetics. There were indications of elevated risk among those with higher UVB radiation (p=0.045), whites (p=0.056) and among those with higher levels of cigarette smoking (p=0.062). Elevated additive risk was observed for estimated occupational radiation eye-lens doses <100 mGy (p=0.004) with no dose–response curvature (p=0.903).ConclusionsThe elevated additive risks associated with low-dose radiation, if confirmed elsewhere, have important public health and clinical implications for radiation workers as well as regulatory measures.

Occupational Radiation Exposure of Anesthesia Providers: A Summary of Key Learning Points and Resident-Led Radiation Safety Projects

2017 ◽  
Vol 21 (2) ◽  
pp. 165-171 ◽  
Author(s):  
Rachel R. Wang ◽  
Amanda H. Kumar ◽  
Pedro Tanaka ◽  
Alex Macario
Keyword(s):  
Occupational Exposure ◽  
Ionizing Radiation ◽  
Radiation Exposure ◽  
Radiation Safety ◽  
Radiological Protection ◽  
Dose Equivalent ◽  
Occupational Radiation Exposure ◽  
Anesthesia Providers ◽  
Occupational Radiation ◽  
Learning Points

Anesthesia providers are frequently exposed to radiation during routine patient care in the operating room and remote anesthetizing locations. Eighty-two percent of anesthesiology residents (n = 57 responders) at our institution had a “high” or “very high” concern about the level of ionizing radiation exposure, and 94% indicated interest in educational materials about radiation safety. This article highlights key learning points related to basic physical principles, effects of ionizing radiation, radiation exposure measurement, occupational dose limits, considerations during pregnancy, sources of exposure, factors affecting occupational exposure such as positioning and shielding, and monitoring. The principle source of exposure is through scattered radiation as opposed to direct exposure from the X-ray beam, with the patient serving as the primary source of scatter. As a result, maximizing the distance between the provider and the patient is of great importance to minimize occupational exposure. Our dosimeter monitoring project found that anesthesiology residents (n = 41) had low overall mean measured occupational radiation exposure. The highest deep dose equivalent value for a resident was 0.50 mSv over a 3-month period, less than 10% of the International Commission on Radiological Protection occupational limit, with the eye dose equivalent being 0.52 mSv, approximately 4% of the International Commission on Radiological Protection recommended limit. Continued education and awareness of the risks of ionizing radiation and protective strategies will reduce exposure and potential for associated sequelae.

scholarly journals Study on Occupational Radiation Exposure at Different Hospitals in Nepal using ThermoluminescenceDosimetry

2020 ◽  
Vol 19 (1) ◽  
pp. 180-185
Author(s):  
Prabhash Acharya ◽  
Gita Chalise ◽  
Bipin Rijal ◽  
Hari Prasad Lamichhane ◽  
Buddha Ram Shah
Keyword(s):  
Radiation Exposure ◽  
Radiological Protection ◽  
Occupational Radiation Exposure ◽  
Dose Rates ◽  
Routine Work ◽  
Occupationally Exposed ◽  
Dose Limits ◽  
Radiation Workers ◽  
Set Up ◽  
Occupational Radiation

 The clinical efficacy of using ionizing radiation in diagnosis and treatment of diseases has been revolu­tionized, benefitting humankind and, at the same time, imposing deleterious health effects, if not han­dled carefully. Personnel dosimetry has emerged as an essential tool to monitor occupational radiation exposure. The present study intends to reveal and describe the scenario of occupationally exposed staff by assessing an individual’s dose in radiological facilities at different hospitals in Nepal. Thermo luminescent Dosimetry (TLD) has been used for assessing individual doses. Altogether eight hospitals were chosen from different locations of Nepal. TLD badges were worn by the radiation workers on their chest level while working with the radiological equipment for about three to ten months during their routine work. Later the badges were read out in the TLD badge reader system available at Nepal Academy of Science and Technology (NAST) to obtain the exposed doses. CaSO4: Dy was used as TL phosphor. Exposed doses for health personnel during their routine work were founding the range of (2.21 to 16.17) 0.01 mSv per year, which was low compared to the permissible dose limit of 20 mSv per year set up by International Commission on Radiological Protection(ICRP). Although the exposed dose rates in the monitored hospitals are below the recommended dose limits, it should be made as low as possible based on the ALARA principle.

Occupational radiation exposure in vascular interventional radiology: A complete evaluation of different body regions

2016 ◽  
Vol 32 (8) ◽  
pp. 1019-1024 ◽  
Author(s):  
Fernando Antonio Bacchim Neto ◽  
Allan Felipe Fattori Alves ◽  
Yvone Maria Mascarenhas ◽  
Patrícia Nicolucci ◽  
Diana Rodrigues de Pina
Keyword(s):  
Interventional Radiology ◽  
Radiation Exposure ◽  
Complete Evaluation ◽  
Occupational Radiation Exposure ◽  
Body Regions ◽  
Occupational Radiation
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