Comparative Study on the Dosimetric Verification of Intensity-Modulated Radiation Therapy of Monaco and Xio Treatment Planning Systems
WANG Ning1, CHEN A-long2, XIA Jing-tao3
1.Department of Radiology, Zhongshan Traditional Chinese Medicine Hospital, Zhongshan Guangdong 528400, China; 2.Department of Radiotherapy, Sun Yat-sen University Cancer Center, Guangzhou Guangdong 510060, China; 3.Nanfang Hospital, Southern Medical University, Guangzhou Guangdong 510515, China
Abstract：Objective To evaluate the clinical accuracy of Monaco and Xio treatment planning systems (TPS) by comparing the dose verification results of intensity-modulated radiation therapy (IMRT) of the two treatment planning systems. Methods The dose verification of IMRT plans for nasopharyngeal carcinoma formulated by Xio TPS (n=20) and Monaco TPS (n=20) was conducted by IBA Matrixx. Then Gamma pass rate analysis was conducted according to various criterias including 2%/2 mm, 3%/3 mm and 5%/3 mm. Results The average Gamma pass rate of IMRT plans of Monaco TPS was higher than that of Xio TPS according to all the criterias. There were significant differences between Monaco TPS and Xio TPS on the Gamma pass rate according to 2%/2 mm and 3%/3 mm criterias (P＜0.05) while there were no significant differences between the two treatment planning systems on the Gamma pass rate according to 5%/3 mm criterion (P＞0.05). Conclusion Both of Monaco and Xio treatment planning systems can be applied to clinical IMRT while the accuracy of Monaco TPS is higher than that of Xio TPS.
王宁，陈阿龙，夏景涛. Monaco与Xio治疗计划系统调强放疗剂量验证的比较研究[J]. 中国医疗设备, 2014, 29(7): 20-22.
WANG Ning, CHEN A-long, XIA Jing-tao. Comparative Study on the Dosimetric Verification of Intensity-Modulated Radiation Therapy of Monaco and Xio Treatment Planning Systems. China Medical Devices, 2014, 29(7): 20-22.
Dobler B,Streck N,Klein E,et al.Hybrid plan verification for intensity-modulated radiation therapy (IMRT) using the 2D ionization chamber array I'mRT matrix-a feasibility study[J].Physics in Medicine and Biology,2010,55(2):N39-N55.
[1]
Low DA,Dempsey JF.Evaluation of the gamma dose distribution comparison method[J].Physics in Medicine and Biology,2005,50(3):399-411.
[2]
Poppe B,Blechschmidt A,Djouguela A,et al.Two-dimensional ionization chamber arrays for IMRT plan verification[J].Med phys, 2006,33(4):1005-1015.
Krieger T,Sauer OA.Monte Carlo-versus pencil-beam-/collapsed-cone-dose calculation in a heterogeneous multi-layer phantom[J].Physics in Medicine and Biology,2005,50(5):859-868.
[9]
Fippel M.Fast Monte Carlo dose calculation for photon beams based on the VMC electron algorithm[J].Med Phys,1999,26(8):1466-1475.
[10]
Fippel M,Haryanto F,Dohm O,et al.A virtual photon energy fluence model for Monte Carlo dose calculation[J].Med Phys,2003,30(3):301-311.
