Feasibility analysis of home-made AQA phantom applied for Cyberknife quality control
10.13491/j.issn.1004-714X.2022.06.001
- VernacularTitle:自制 AQA 模体应用于射波刀质控的可行性分析
- Author:
Yuze YANG
1
;
Mingsheng LI
1
;
Hui LIU
1
;
Xiangjie MA
1
;
Xiao WEI
1
;
Jinsheng CHENG
1
Author Information
1. National Institute for Radiological Protection, Chinese Center for Disease Control and Prevention
- Publication Type:Journal Article
- Keywords:
Cyberknife;
Phantom;
Auto quality assurance;
Radiotherapy;
Quality control
- From:
Chinese Journal of Radiological Health
2022;31(6):645-650
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To discuss the feasibility of applying home-made auto quality assurance (AQA) phantom in Cyberknife AQA test.
Methods:The same treatment plan for AQA test was designed in the Cyberknife treatment planning
system. The AQA tests were performed under the same conditions using the home-made AQA phantom and the AQA
phantom in the fourth-generation (G4) Cyberknife mode and the fifth-generation (VSI) Cyberknife mode, respectively, and each measurement was repeated five times to analyze and compare the differences in test results between the two phantoms.
Results:The total deviations of the home-made AQA phantom and the AQA phantom in the AQA test under the G4 Cy-
berknife mode were (0.28 ± 0.12) mm and (0.28 ± 0.15) mm, respectively (P > 0.05); the test results under the VSI Cy-
berknife mode were (0.46 ± 0.19) mm and (0.50 ± 0.07) mm, respectively (P > 0.05); the total deviations of all test results
were smaller than 1.0 mm, which met the requirements of WS 667—2019 Specification for Testing of Quality Control in Ro-
botic Arm Radiotherapy Device.
Conclusion:The test results of the home-made AQA phantom and the AQA phantom are
consistent in the AQA test, and the home-made AQA phantom can be used for Cyberknife quality control.
