| Yin Yuchen,Wang Xuan,Xu Wenxing,et al.Monte Carlo-based estimation of absorbed dose and effective dose to critical tissues and organs of operators in the overexposure incident during an interventional procedure[J].Chinese Journal of Radiological Medicine and Protection,2024,44(8):688-692 |
| Monte Carlo-based estimation of absorbed dose and effective dose to critical tissues and organs of operators in the overexposure incident during an interventional procedure |
| Received:January 25, 2024 |
| DOI：10.3760/cma.j.cn112271-20240125-00032 |
| KeyWords:Interventional therapy Organ dose Monte Carlo |
| FundProject: |
| Author Name | Affiliation | E-mail | | Yin Yuchen | State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China | | | Wang Xuan | Prevention and Treatment Center for Occupational Disease of Xinxiang City, Xinxiang 453003, China | | | Xu Wenxing | State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China | | | Bai Xiaoyu | State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China | | | Tu Yu | State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China | | | Zhang Bingjie | Prevention and Treatment Center for Occupational Disease of Xinxiang City, Xinxiang 453003, China | | | Sun Liang | State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Soochow University, Suzhou 215123, China | slhmz666@suda.edu.cn |
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| Abstract:: |
| Objective To estimate tissue/organ doses and effective dose to operators in the overexposure incident during an interventional procedure using Monte Carlo method. Methods The phantoms were constructed for both the operators and the patient based on the adult mesh-type reference computational phantoms (MRCPs) recommended by the International Commission on Radiological Protection (ICRP) Publication 145 and phantom deformation technology. Models of exposure scenario were constructed based on the on-site equipment and the irradiation conditions. The Monte Carlod simulation method was used to evaluate the absorbed dose to critical tissues and organs, such as the operator's eye lens and thyroid, as well as the effective dose. Results In the particular exposure conditions, the maximum absorbed doses in the primary organs of the two operators were in the left eye lens, with doses of 1.216 and 0.223 mGy, respectively. The thyroid absorbed doses were 0.074 and 0.019 mGy, while the effective doses to the two operators were 0.088 and 0.021 mSv, respectively. The reduction rates of effective dose for the two operators when wearing lead aprons and lead thyroid collars were 67.16% and 78.79%, respectively. Conclusions The combination of Monte Carlo method and MRCPs can be used to restore a specific irradiation scenario to a high degree and to estimate the physical dose of to the irradiated persons. |
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