Feasibility Study of Beam Angle Optimization Based on Scripts in Automated-planning for Liver Cancer.
10.3969/j.issn.1671-7104.2023.04.003
- Author:
Han XIAO
1
;
Yujie ZHANG
1
;
Weixing JI
1
;
Tingting LI
1
;
Jianying ZHANG
1
Author Information
1. Department of Radiotherapy, Zhongshan Hospital, Fudan University, Shanghai, 200032.
- Publication Type:Journal Article
- Keywords:
automated planning;
beam angle optimization;
liver cancer;
plan quality metric
- MeSH:
Humans;
Radiotherapy Planning, Computer-Assisted/methods*;
Feasibility Studies;
Radiometry/methods*;
Liver Neoplasms/radiotherapy*;
Radiotherapy, Intensity-Modulated/methods*;
Radiotherapy Dosage
- From:Chinese Journal of Medical Instrumentation
2023;47(4):365-369
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To study the feasibility and potential benefits of beam angle optimization (BAO) to automated planning in liver cancer.
METHODS:An approach of beam angle sampling is proposed to implement BAO along with the module Auto-planning in treatment planning system (TPS) Pinnacle. An in-house developed plan quality metric (PQM) is taken as the preferred evaluating method during the sampling. The process is driven automatically by in-house made Pinnacle scripts both in sampling and scoring. In addition, dosimetry analysis and physician's opinion are also performed as the supplementary and compared with the result of PQM.
RESULTS:It is revealed by the numerical analysis of PQM scores that only 15% patients whose superior trials evaluated by PQM are also the initial trials. Gantry optimization can bring benefit to plan quality along with auto-planning in liver cancer. Similar results are provided by both dose comparison and physician's opinion.
CONCLUSIONS:It is possible to introduce a full automated approach of beam angle optimization to automated planning process. The advantages of this procedure can be observed both in numerical analysis and physician's opinion.
