摘要
目的采用ISO 13528稳健分析法对全国43家放射卫生技术机构生物剂量估算能力考核结果进行分析,评估和判断放射卫生技术机构生物剂量估算能力和水平。方法按照4个不同照射剂量分组,每个参加机构随机抽取2个盲样,进行制片、分析及估算照射剂量,在规定时间内提交结果。根据z比分数公式对43家机构生物剂量估算结果进行分析,|z|≤2即为合格。结果4个剂量组的|z|≤2的比例分别为1.7 Gy(95.7%)、2.1 Gy(91.3%)、2.8 Gy(81.8%)和3.7 Gy(90%),在43家机构中两个考核样本均为|z|≤2的有36家(83.7%)。结论ISO 13528稳健统计可用于生物剂量估算能力考核结果分析。大多数机构的生物剂量估算能力合格,说明全国生物剂量估算能力整体水平较好,少部分机构的能力有待提高。
Objective To analyze the assessment results of biological dose estimation capabilities of 43 radiological health technology institutes nationwide with the use of ISO 13528 robust statistical method,and to evaluate and judge the biological dose estimation capabilities as well as levels of radiological health technology institutes.Method Divided them into 4 different irradiation dose groups,each participating institution was randomly selected 2 blind samples to perform independent preparation,analysis,estimation of the irradiation dose,and returned the results within the prescribed time.According to the formula of z-score,the biological dose estimation results of 43 institutions were analyzed,and|z|≤2 was qualified.Results The proportion of|z|≤2 in the 4 dose groups were 95.7%(1.7 Gy),91.3%(2.1 Gy),81.8%(2.8 Gy)and 90%(3.7 Gy),respectively.In the 44 institutions,36(83.7%)have two samples with|z|≤2.Conclusion ISO 13528 robust analysis can be used to evaluate the results of biological dose estimation capabilities.The biological dose estimation capabilities of most institutions are qualified,indicating that the overall levels of national biological dose estimation capabilities are qualified,only the capabilities of a few institutions need to be improved.
作者
朴春南
吴丽娜
阮健磊
高刚
潘艳
刘建香
PIAO Chunnan;WU Lina;RUAN Jianlei;GAO Gang;PAN Yan;LIU Jianxiang(Key Laboratory of Radiological Protection and Nuclear Emergency,China CDC,National lnstitute for Radiological Protection,Chinese Center for Disease Control and Prevention,Beijing 100088 China)
出处
《中国辐射卫生》
2020年第5期535-539,共5页
Chinese Journal of Radiological Health
关键词
生物剂量估算
稳健统计
z比分数
染色体畸变
Biological Dose Estimation
Robust Analysis
Z-Score
Chromosome Aberration
