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Analysis of external exposure dose monitoring results of interventional radiology staff in a hospital from 2018 to 2020 |
YANG Yanyan, ZHU Chendi, ZHOU Chunlian, CHEN Huiqing |
Department of Disease & Nosocomial Infection Prevention and Control, Beijing Friendship Hospital, Capital Medical University, Beijing 100050 China |
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Abstract Objective To analyze the monitoring results of external exposure dose of interventional radiology staff in a tertiary general hospital in Beijing, China, 2018—2020, and to provide a basis for safe guarding staff health and hospital radiation protection management. Methods A total of 321 interventional radiology staff in a hospital in Beijing were selected to collect information on the types of interventional work, positions, and personal dose monitoring results in 2018—2020. The dose monitoring results were analyzed using SPSS 22.0. Results The effective monitoring rate for the three years was 78.82%, 81.65%, and 96.85%, respectively, showing an increasing trend (χ2 trend = 16.134, P < 0.001). The annual dose equivalent per capita was 0.142, 0.142, and 0.265 mSv, respectively. The annual dose equivalent per capita in 2020 was significantly higher than those in 2018 (H = 24.562, P < 0.001) and 2019 (H = 39.378, P < 0.001). The annual dose equivalent per capita in 2020 was in the order of interventional clinician > interventional nurse > technician (H = 10.699, 6.562, P < 0.01). The annual dose equivalent per capitain 2020 was higher in the cardiology interventional department than in the comprehensive interventional, neuro interventional, and vascular surgery departments (H = 35.530, 37.614, 35.496, P < 0.001). Conclusion The number of interventional radiology staff monitored from 2018 to 2020 increased year by year, so did the effective monitoring rate.The external exposure dose was at low levels, which generally meets the requirements of national occupational exposure limits. Training on radiation protection for interventional radiology staff should be further strengthened to raise awareness of radiation protection.
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Received: 14 April 2022
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