Purpose: The purpose of this report is to describe the proton therapy system at Samsung Medical Center (SMC-PTS) including the proton beam generator, irradiation system, patient positioning system, patient position verification system, respiratory gating system, and operating and safety control syst...
Purpose: The purpose of this report is to describe the proton therapy system at Samsung Medical Center (SMC-PTS) including the proton beam generator, irradiation system, patient positioning system, patient position verification system, respiratory gating system, and operating and safety control system, and review the current status of the SMC-PTS. Materials and Methods: The SMC-PTS has a cyclotron (230 MeV) and two treatment rooms: one treatment room is equipped with a multi-purpose nozzle and the other treatment room is equipped with a dedicated pencil beam scanning nozzle. The proton beam generator including the cyclotron and the energy selection system can lower the energy of protons down to 70 MeV from the maximum 230 MeV. Results: The multi-purpose nozzle can deliver both wobbling proton beam and active scanning proton beam, and a multi-leaf collimator has been installed in the downstream of the nozzle. The dedicated scanning nozzle can deliver active scanning proton beam with a helium gas filled pipe minimizing unnecessary interactions with the air in the beam path. The equipment was provided by Sumitomo Heavy Industries Ltd., RayStation from RaySearch Laboratories AB is the selected treatment planning system, and data management will be handled by the MOSAIQ system from Elekta AB. Conclusion: The SMC-PTS located in Seoul, Korea, is scheduled to begin treating cancer patients in 2015.
Purpose: The purpose of this report is to describe the proton therapy system at Samsung Medical Center (SMC-PTS) including the proton beam generator, irradiation system, patient positioning system, patient position verification system, respiratory gating system, and operating and safety control system, and review the current status of the SMC-PTS. Materials and Methods: The SMC-PTS has a cyclotron (230 MeV) and two treatment rooms: one treatment room is equipped with a multi-purpose nozzle and the other treatment room is equipped with a dedicated pencil beam scanning nozzle. The proton beam generator including the cyclotron and the energy selection system can lower the energy of protons down to 70 MeV from the maximum 230 MeV. Results: The multi-purpose nozzle can deliver both wobbling proton beam and active scanning proton beam, and a multi-leaf collimator has been installed in the downstream of the nozzle. The dedicated scanning nozzle can deliver active scanning proton beam with a helium gas filled pipe minimizing unnecessary interactions with the air in the beam path. The equipment was provided by Sumitomo Heavy Industries Ltd., RayStation from RaySearch Laboratories AB is the selected treatment planning system, and data management will be handled by the MOSAIQ system from Elekta AB. Conclusion: The SMC-PTS located in Seoul, Korea, is scheduled to begin treating cancer patients in 2015.
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문제 정의
This report provides an overview of the status of the SMCPTS focusing on the major equipment used for the acceleration, transport, and delivery of proton beams. The clinical commissioning of the SMC-PTS systems, dosimetric measurements and calculations will be described in future publications.
대상 데이터
” SMC consists of a hospital and a cancer center; the hospital is located in an intelligent building with 20 floors above ground and 5 floors underground, housing 40 departments, 10 specialist centers, and 120 special clinics. The cancer center has 11 floors above ground and 8 floors underground. SMC is a tertiary hospital manned by approximately 7,400 staff including over 1,200 doctors and 2,300 nurses.
5) Respiratory gating system: At SMC-PTS, AZ-733V (Anzai Medical, Tokyo, Japan) system is installed for gating of a respiratory motion. The system is mainly composed of a respiratory sensor (RS), a sensor port (SP), and a wave deck (WD). The RS detects abdominal motions (pressure changes) of a patient and the SP amplifies and transmits the analog signal from RS.
이론/모형
It will support SHI’s beam delivery techniques.
Participating in the α-version development, SMC has developed the model of SHI system and the developed modules (generic MLC and ridge filter) have been included in TOPAS package. The specific geometry of treatment nozzles has been provided by SHI in the agreement of using the developed Monte Carlo simulation in commissioning.
후속연구
The installation of MOSAIQ system and the first integration test with Sumitomo treatment control system (TCS) have been finished in March 2015. The final integration test among RayStation, MOSAIQ, and Sumitomo TCS will be coming soon.
참고문헌 (7)
1 Particle Therapy Co-Operative Group Particle therapy facilities under construction [Internet] [place unknown] Particle Therapy Co-Operative Group c2013 cited 2015 July 14 Available from: http://www.ptcog.ch/index.php/facilities-under-construction
2 Perl J Shin J Schumann J Faddegon B Paganetti H TOPAS: an innovative proton Monte Carlo platform for research and clinical applications Med Phys 2012 39 6818 6837 23127075
3 Agostinelli S Allison J Amako K Geant4: a simulation toolkit Nucl Instrum Methods Phys Res A 2003 506 250 303
4 Chung K Kim JS Kim DH Ahn SH Han YY The proton therapy nozzles at Samsung Medical Center: a Monte Carlo Simulation Study using TOPAS J Korean Phys Soc 2015 67 170 174
5 Kim JS Shin JS Kim D Feasibility study of the neutron dose for real-time image-guided proton therapy: a Monte Carlo study J Korean Phys Soc 2015 67 142 146
7 Wedenberg M Toma-Dasu I Disregarding RBE variation in treatment plan comparison may lead to bias in favor of proton plans Med Phys 2014 41 091706 25186381
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