广东省DR专用检测项目比对结果分析

目的 通过对比对结果的分析，了解放射卫生技术服务机构在DR专项检测方面存在的问题，为提高检测能力提供依据。方法 采用整群抽样方法，以自愿参加本次比对的30家放射卫生技术服务机构为研究对象，采用基于四分位数稳健统计技术的z比分数对本次检测所提交的结果进行分析和评价。结果 在参加比对的30家机构所提交可分析的309项数据中，比对结果评价为满意的有267项，占比为86.4%；比对结果评价为可疑的有24项，占比为7.8%；比对结果离群的有18项，占比为5.8%。比对项目"STP"的结果最好，满意项占比为100%，比对项目"剂量测量"的离群结果占比最高，为20.0%，比对项目"极限空间分辨力"的可疑结果占比最高，为16.7%。结论 放射卫生技术服务机构技术水平有待提高，需加强日常质量控制管理，提升标准化操作意识，建设放射卫生检测数据平台，促进放射卫生检测行业健康发展。

The analysis of comparison on the results of DR special detection items in Guangdong Province

Objective To understand the existing problems in DR special detection in radiological hygiene technical service institutions by comparing the analyzing the results and so as to provide evidence for improving detection capabilities.Methods Using cluster sampling method, where 30 radiological hygiene technical service institutions voluntarily participating in this comparison were selected as the research object, and the results of the detection were analyzed and evaluated based on the z-score based comparison on the quartile robust statistical technique.Results Among the 309 data items submitted by the 30 institutions participating in the comparison, 267 items, accounting for 86.4%, were satisfied with the test results; 24 items, accounting for 7.8% were suspicious; 18 items, accounting for 5.8% were outliers. The result of the comparison item "STP" is the best, since the proportion of satisfaction items is 100%, and the outlier results of the comparison item "Dose measurement" account for the highest proportion, which is 20.0%. The comparison item "Ultimate spatial resolution" has the highest proportion of suspicious results, which account for 16.7%.Conclusion The technical level of radiological hygiene technical service institutions needs to be improved. It is necessary to strengthen the daily quality control management, enhance the awareness of standardized operations, build the radiological hygiene detection data platform, and promote the healthy development of radiological hygiene detection industry.