An analysis of results of 392 times of CT quality control and room radiological protection testing in Guangdong Province, China
10.13491/j.issn.1004-714X.2024.01.011
- VernacularTitle:广东省392台次CT质量控制和机房防护检测结果分析
- Author:
Xiyuan CHENG
1
,
2
,
3
,
4
;
Yanpeng LIAO
5
;
Shupeng LIU
6
;
Chuang WANG
7
;
Meijuan ZHOU
1
,
2
,
3
,
4
Author Information
1. Department of Radiation Medicine, School of Public Health, Southern Medical University, Guangzhou 510515 China
2. NMPA Key Laboratory for Safety Evaluation of Cosmetics, School of Public Health, Southern Medical University, Guangzhou 510515 China
3. Guangdong-Hongkong-Macao Joint Laboratory for Contaminants Exposure and Health, School of Public Health, Southern Medical University, Guangzhou 510515 China
4. Key Laboratory of Tropical Disease Research of Guangdong Province, School of Public Health, Southern Medical University, Guangzhou 510515 China.
5. SMU Medical Equipment Test Co., Ltd., Guangzhou 510515 China.
6. Department of Radiation Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515 China.
7. Guangdong Medical Devices Quality Surveillance and Test Institute, Guangzhou 510663 China.
- Publication Type:OriginalArticles
- Keywords:
Computed tomography;
Quality control;
Radiological protection;
Weighted CT dose index;
Ambient dose equivalent rate
- From:
Chinese Journal of Radiological Health
2024;33(1):61-67
- CountryChina
- Language:Chinese
-
Abstract:
Objective To provide a theoretical basis for radiation health supervision through an analysis of the situation of computed tomography (CT) equipment quality control and CT room radiological protection in Guangdong Province, China in recent years. Methods We collected the data of 392 times of CT quality control and radiological protection testing by a third-party radiological health technical service institution in Guangdong Province from 2019 to 2021. We analyzed the levels of CT-owning hospitals, CT manufacturers, CT quality control test results, and the pass rate of radiation protection tests. Results The examined CT scanners were from different levels of hospitals in Guangdong Province, and were manufactured by nine major CT equipment manufacturers at home and abroad. The pass rate of CT room radiological protection was 99.88%, and the ambient dose equivalent rates of five monitoring points exceeded the limit, with four at the control room door and one at the shield wall of the room. The overall pass rate of CT equipment quality control was 99.49%, and the non-conforming parameters were the accuracy of positioning light and the deviation of reconstructed slice thickness. Conclusion In recent years, CT equipment quality control and room radiation protection in Guangdong Province have been at a high level.
