Dosimetric comparison between KylinRay-IMRT and Pinnacle3 TPS in thoracic tumor plans(PDF)
《中国医学物理学杂志》[ISSN:1005-202X/CN:44-1351/R]
- Issue:
- 2020年第1期
- Page:
- 17-21
- Research Field:
- 医学放射物理
- Publishing date:
Info
- Title:
- Dosimetric comparison between KylinRay-IMRT and Pinnacle3 TPS in thoracic tumor plans
- Author(s):
- LIU Xiaobo1; 2; WANG Dong1; ZHAO Yun1; ZHENG Huaqing1; JIA Jing1; SONG Jing1
- 1. Key Laboratory of Neutronics and Radiation Safety, Institute of Nuclear Energy Safety Technology, Chinese Academy of Sciences, Hefei 230031, China; 2. University of Science and Technology of China, Hefei 230026, China
- Keywords:
- Keywords: intensity-modulated radiotherapy; treatment planning system; software test; dosimetry; plan comparison
- PACS:
- R811.1；R730.55
- DOI:
- DOI:10.3969/j.issn.1005-202X.2020.01.004
- Abstract:
- Abstract: Objective To verify and evaluate the capability of inverse planning optimization of KylinRay-IMRT 5.0 for intensity-modulated radiotherapy (IMRT) by analyzing the quality of planning optimizations with two different treatment planning systems (TPS). Methods Fifteen thoracic tumor plans selected from case database were imported into KylinRay-IMRT for optimization calculations, and the optimization results were confirmed with those of Pinnacle3 TPS. The dosimetric index values selected from TPS were obtained and compared with t test. Results The homogeneity index, conformity index and dose distribution of two kinds of TPS plans satisfied the clinical requirements. The homogeneity index of target areas in KylinRay-IMRT plan was slightly better than that in control TPS plan (t=4.480; P=0.001). The V10, V20, V30 and mean dose of lungs in KylinRay-IMRT plan were slightly better than those in control TPS plan (t=2.594, 6.672, 3.471, 6.225; P<0.05), and the V30, V40 and mean dose of heart in KylinRay-IMRT plan were superior to those in control TPS plan (t=6.078, 6.466, 8.712; P<0.05). No statistical significance was found in the conformity index of target areas (t=-1.548; P=0.144), lung-V5 (t=1.339; P=0.202) and the maximum dose to spinal cord (t=1.465; P=0.165). Conclusion For cases of thoracic tumors, there are differences in the optimization outcomes of the two TPS due to TPS itself and human factors. The quality of KylinRay-IMRT plan is proved to be within the acceptable range, and its capability of inverse planning optimization satisfies the requirements of clinical safety and validity.
Last Update: 2020-01-14