Analysis of performance test results of some medical linear accelerators in Hebei Province, China, 2019—2021
10.13491/j.issn.1004-714X.2022.05.013
- VernacularTitle:2019—2021年河北省部分医用直线加速器性能检测结果分析
- Author:
Peng LI
1
;
Yuanyuan ZHANG
1
;
Lihong JIANG
1
;
Xiaopeng LI
1
;
Youcheng WANG
1
;
Yong LIU
1
;
Yu ZHANG
2
;
Qingguo NIU
1
Author Information
1. Shijiazhuang Center for Disease Control and Prevention, Shijiazhuang 050031 China.
2. Kaijiefangda Detection Technology Hebei Limited Company, Shijiazhuang 050000 China.
- Publication Type:Journal Article
- Keywords:
Medical linear accelerator;
Quality control;
Performance testing;
Radiological diagnosis and radiotherapy
- From:
Chinese Journal of Radiological Health
2022;31(5):592-596
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the current situation of quality control in medical linear accelerators in Hebei Province, China. Methods The main performance indices of some medical linear accelerators in Hebei Province, 2019—2021 were tested according to the current relevant effective standards GB 15213—2016 Medical Electron Accelerators-Functional Performance Characteristics and Test Methods and WS 674—2020 Specification for Testing of Quality Control in Medical Linear Accelerator. Results A total of 175 medical linear accelerators were tested from 2019 to 2021, and the annual pass rates were 72.4% in 2019, 75.9% in 2020, and 79.4% in 2021. The overall pass rate of initial inspection was 76.0%, and the pass rate of reinspection was 100.0%. The index with the lowest pass rate in the initial inspection was square X radiation field uniformity, followed by dose deviation and square X radiation field symmetry. Conclusion Medical institutions should strengthen quality control management, conduct regular testing of medical linear accelerators, and timely correct dose deviation, so as to ensure the treatment effect of patients.
