Analysis of inter-laboratory comparison for CT results of technical service institutions of radiological health
10.3969/j.issn.1672-8270.2025.09.018
- VernacularTitle:放射卫生技术服务机构CT室间比对结果分析
- Author:
Shifeng HOU
1
;
Yiwei SU
1
;
Jianwei LIAO
1
;
Qiangqiang WANG
1
;
Zhi WANG
1
;
Jianyu WANG
1
Author Information
1. 广州市第十二人民医院职业环境与健康重点实验室 广州市放射卫生质量控制中心 广州 510620
- Publication Type:Journal Article
- Keywords:
Computed tomography(CT);
Quality control;
Inter-laboratory comparison;
Radiological health
- From:
China Medical Equipment
2025;22(9):90-93
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the comparative results of computed tomography(CT)of inter-laboratory,and grasp the existed problems in quality control for CT examination in technical service institution of radiation health,so as to improve the ability of examination,and provide technical support for CT quality control of medical institutions.Methods:Cluster sampling method was used to extract 18 institutions with radiological health technical service,which took part in the inter-laboratory comparison for CT examination ability in Guangzhou city in December 2023.A total of 6 items,which included weighted CT dose index(CTDIw),CT value(water),noise,uniformity,high contrast resolution,and low contrast detectability,were used as the compared items.The method that single evaluation combined with comprehensive evaluation was used to analyze the submitted comparative data.The evaluation of single comparative index adopted"satisfaction","basic satisfaction"and"nonsatisfaction"to conduct evaluation,and the comprehensive evaluation used"excellent","favorable","qualified"and"unqualified"to conduct evaluation.Results:In terms of single evaluation,18 institutions with technical service participated in the comparison of 108 indicators,of which 85 items(accounting for 78.7%)were"satisfaction",and 21 items(accounting for 19.4%)were"basic satisfaction",and 2 items(accounting for 1.9%)were"nonsatisfaction".In terms of comprehensive evaluation,the result of comprehensive evaluation of 6 institutions(accounting for 33.3%)was"excellent",and that of 6 institutions(accounting for 33.3%)was"favorable",and that of 4 institutions(accounting for 22.2%)was"qualified",and that of 2 institutions(accounting for 11.1%)was"nonqualified"in the 18 technical service institutions that took part in the comparison.Conclusion:The testing capabilities and levels of various institutions with radiation health technology service for CT quality control are uneven,and there are unqualified situation in part of detection indicators.Therefore,it is necessary to pay attention to the training for the detection ability of technical personnel,and improve their detection skills to ensure the quality of technical services.
