| Lian Dexing,Kou Shanshan,Lu Jianfei,et al.Radiological protection detection and dose assessment of selective internal radiotherapy with 90Y resin microspheres[J].Chinese Journal of Radiological Medicine and Protection,2022,42(5):385-390 |
| Radiological protection detection and dose assessment of selective internal radiotherapy with 90Y resin microspheres |
| Received:February 23, 2022 |
| DOI：10.3760/cma.j.cn112271-20220223-00066 |
| KeyWords:90Y Resin microspheres Internal radiation therapy Radiation protection |
| FundProject: |
| Author Name | Affiliation | E-mail | | Lian Dexing | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Kou Shanshan | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Lu Jianfei | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Zhang Qingzhao | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Zhu Weiguo | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | | | Wang Chuanjian | Hainan Center for Disease Control and Prevention, Haikou 570203, China | | | Hou Changsong | Key Laboratory of Radiological Protection and Nuclear Emergency, China CDC, National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention, Beijing 100088, China | houchangsong@nirp.chinacdc.cn |
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| Abstract:: |
| Objective To conduct radiation detection and dose assessment in selective internal radiotherapy with90Y resin microspheres for the purpose of providing a reference for radiological protection.Methods The dose rates from radiotherapy with90Y resin microspheres were detected in the process of each operation at different distances from the body surface of patients the levels of dose to the persons concerned were compared with the relevant national regulations and standards.Results The estimated dose rates were 1.12-454 μSv/h during90Y resin microspheres dispensing and 2.06-58.2 μSv/h during surgical procedure. The dose rates at 0.5 h after surgery were 22.7-64.1 μSv/h at 5 cm and 0.82-2.55 μSv/h at 1 m from three patient's body surface. Assuming treating 200 patients a year, the annual individual effective dose to the radiation workers was 0.12-1.03 mSv/year. The annual individual effective dose to the public, comforters and carers of patients was 0.02-0.24 mSv/year after release of a patient.Conclusions During the treatment, nursing and release of patients, the radiation doses to workers, carers and the public are lower than the individual dose limit given in the GB18871-2002basic standards for protection against ionizing radiation and for the safety of radiation sources and the management target value set by of the relevant medical institutions. |
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