Abstract：Objective To explore the application value of 2D ionization chamber array in the dose verification of IMRT plans. Methods IMRT plans of 16 patients who would undergo IMRT in our hospital were designed through treatment planning system and then were migrated to solid water to obtain phantom hybrid plans. Then the dose verification of phantom hybrid plans was conducted with 2D ionization chamber array. The verification results were analyzed according to 3%/3 mm criterion. Results The passing rate scope of absolute dose verification results of all radiation fields was 86.4%~100% while that of relative dose verification results of all radiation fields was 88.5%~100%. Conclusion As a fast dose measurement system, 2D ionization chamber array plays an important role in the dose verification of IMRT plans.
时勇，张芬，张开贤，李成建，张敏. 利用二维电离室矩阵进行调强放疗计划剂量验证的探讨[J]. 中国医疗设备, 2014, 29(9): 120-121.
SHI Yong, ZHANG Fen, ZHANG Kai-xian, LI Cheng-jian, ZHANG Min. Discussion on Dose Verification of IMRT Plans with 2D Ionization Chamber Array. China Medical Devices, 2014, 29(9): 120-121.
Depuydt T,Van Esch A,Huyskens DP.A quantitative evaluation of IMRT dose distributions: refinement and clinical assessment of the gamma evaluation[J].Radiother Oncol,2002,62(3):309-319.
