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Interface software for DOSXYZnrc Monte Carlo dose evaluation on a commercial radiation treatment planning system |
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| Authors: | Kunieda Etsuo Deloar Hossain M Takagi Shunji Sato Koichi Kawase Takatsugu Saitoh Hidetoshi Saito Kimiaki Sato Osamu Sorell Graham Kubo Atsushi |
| Affiliation: | (1) Department of Radiology, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, Japan;(2) CREST, Japan Science and Technology Agency, Tokyo, Japan;(3) Safety Engineering and Technology Department, Mitsubishi Research Institute, Tokyo, Japan;(4) Mitsubishi Space Software, Amagasaki, Hyogo, Japan;(5) Department of Radiological Sciences, Tokyo Metropolitan University of Health Sciences, Tokyo, Japan;(6) Center for Promotion of Computational Science and Engineering, Japan Atomic Energy Research Institute, Tokai-mura, Japan;(7) Medical Physics and Bioengineering Department, Christchurch Hospital, Christchurch, New Zealand;(8) Present address: Medical Physics and Bioengineering Department, Christchurch Hospital, Private Bag 4710, Christchurch, New Zealand |
| Abstract: | Purpose As the conventional graphical user interface (GUI) associated with DOSXYZnrc or BEAMnrc is unable to define specific structures such as gross tumor volume (GTV) on computed tomography (CT) data, the quantitative analysis of doses in the form of dose-volume histograms (DVHs) is difficult. The purpose of this study was to develop an interface that enables us to analyze the results of DOSXYZnrc output with a commercial radiation treatment planning (RTP) system and to investigate the validity of the system. Materials and methods Interface software to visualize three-dimensional radiotherapy Monte Carlo (MC) dose data from DOSXYZnrc on the XiO RTP system was developed. To evaluate the interface, MC doses for a variety of photon energies were calculated using the CT data of a thorax phantom and a uniform phantom as well as data from patients with lung tumors. Results The dose files were analyzed on the XiO RTP system in the form of isodose distributions and DVHs. In all cases, the XiO RTP system perfectly displayed the MC doses for quantitative evaluation in the form of differential and integral DVHs. Conclusion Three-dimensional display of DOSXYZnrc doses on a dedicated RTP system could provide all the existing facilities of the system for quantitative dose analysis. |
| Keywords: | Monte Carlo simulation Radiation treatment planning system User interface |
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