| CT引导下125I粒子植入对相关医务人员的辐射剂量评估 |
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| 引用本文： | 钱积娣,张雨,郁春景. CT引导下125I粒子植入对相关医务人员的辐射剂量评估[J]. 国际放射医学核医学杂志, 2018, 42(4): 337-339. DOI: 10.3760/cma.j.issn.1673-4114.2018.04.009 |
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| 作者姓名： | 钱积娣 张雨 郁春景 |
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| 作者单位： | 214062, 江南大学附属医院(无锡市第四人民医院)核医学科 |
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| 摘 要： | 目的评估CT引导下125I粒子植入过程中相关医务人员在不同距离及有无辐射防护措施下的周围剂量当量率。方法125I粒子植入后立即使用多功能射线检测仪测量50例125I粒子植入患者距粒子植入部位体表不同垂直距离（5 cm、10 cm、1 m、2 m和3 m）及有无防护措施条件下的周围剂量当量率，评估医务人员受到的辐射剂量。组间比较采用单因素方差分析。结果距离粒子植入部位体表垂直距离为5 cm、10 cm、1 m、2 m和3 m处的周围剂量当量率分别为（1091.75±10.53）、（1055.50±31.68）、（123.45±20.83）、（20.95±6.10）和（7.78±3.24）μSv/h。0.5 mm铅当量铅衣屏蔽后5 cm、10 cm、1 m、2 m和3 m处的周围剂量当量率分别为（1.36±2.03）、（0.97±1.48）、（0.46±0.63）、（0.29±0.34）和（0.14±0.12）μSv/h。屏蔽前后周围剂量当量率的差异均有统计学意义（F=183.718、71.202、217.411、184.169、108.222，均P < 0.05）。结论CT引导下125I粒子植入过程中相关医务人员采取适当的距离防护及穿戴个人防护用品可以大大降低125I粒子带来的辐射影响。
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| 关 键 词： | 体层摄影术，X线计算机 125I粒子 植入 周围剂量当量率 |
| 收稿时间： | 2017-11-18 |
Radiation dosage assessment of CT guided implantation of 125I seeds for medical personnel |
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| Jidi Qian,Yu Zhang,Chunjing Yu. Radiation dosage assessment of CT guided implantation of 125I seeds for medical personnel[J]. International Journal of Radiation Medicine and Nuclear Medicine, 2018, 42(4): 337-339. DOI: 10.3760/cma.j.issn.1673-4114.2018.04.009 |
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| Authors: | Jidi Qian Yu Zhang Chunjing Yu |
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| Affiliation: | Department of Nuclear Medicine, Affiliated Hospital, Jiangnan University(Wuxi No.4 People's Hospital), Wuxi 214062, China |
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| Abstract: | ObjectiveThis study was conducted to assess the dosage of radiation associated with CT guided implantation of 125I seeds in medical personnel at different distances with or without radiation protection.MethodsAmbient dose equivalent was measured by gamma ray radiation detector after implantation of 125I seeds with or without protection at different distances(5 cm, 10 cm, 1 m, 2 m, and 3 m) into 50 patients. Radiation dose received by medical personnel was assessed.ResultsThe ambient dose equivalents were(1091.75±10.53), (1055.50±31.68), (123.45±20.83), (20.95±6.10), and(7.78±3.24) μSv/h in 5 cm, 10 cm, 1 m, 2 m, and 3 m. The ambient dose equivalents were(1.36±2.03), (0.97±1.48), (0.46±0.63), (0.29±0.34), and(0.14±0.12) μSv/h with 0.5 mmPb lead clothes at distances of 5 cm, 10 cm, 1 m, 2 m, and 3 m. The ambient dose equivalent was statistically significant with or without 0.5 mm Pb lead clothes (F=183.718, 71.202, 217.411, 184.169, 108.222, all P < 0.05).ConclusionsMedical personnel should take appropriate distance protection during 125I seeds implantation. Ambient dose equivalent can be significantly reduced by wearing 0.5 mmPb lead clothes. |
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