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지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
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Purpose: To report the initial experience of patient-specific quality assurance (pQA) for the wobbling and line-scanning proton therapy at Samsung Medical Center. Materials and Methods: The pQA results of 89 wobbling treatments with 227 fields and 44 linescanning treatments with 118 fields were analyzed from December 2015 to June 2016. For the wobbling method, proton range and spread-out Bragg peak (SOBP) width were verified. For the line-scanning method, output and two-dimensional dose distribution at multiple depths were verified by gamma analysis with 3%/3 mm criterion. Results: The average range difference was −0.44 mm with a standard deviation (SD) of 1.64 mm and 0.1 mm with an SD of 0.53 mm for the small and middle wobbling radii, respectively. For the line-scanning method, the output difference was within ±3%. The gamma passing rates were over 95% with 3%/3 mm criterion for all depths. Conclusions: For the wobbling method, proton range and SOBP width were within the tolerance levels. For the line-scanning method, the output and two-dimensional dose distribution showed excellent agreement with the treatment plans.
목차
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참고문헌 (17)
참고문헌 신청
PTCOG-PTCOG Patient Statistics / Ptcogch
Chang JY / 2006 / Significant reduction of normal tissue dose by proton radiotherapy compared with threedimensional conformal or intensity-modulated radiation therapy in Stage I or Stage III non-small-cell lung cancer / Int J Radiat Oncol Biol Phys 65:1087~1096
Hall EJ / 2006 / Intensity-modulated radiation therapy, protons, and the risk of second cancers / Int J Radiat Oncol Biol Phys 65:1~7
Paganetti H / 2012 / Range uncertainties in proton therapy and the role of Monte Carlo simulations / Phys Med Biol 57:R99~117
Lomax AJ / 2004 / Treatment planning and verification of proton therapy using spot scanning : initial experiences / Med Phys 31:3150~3157
Chang JY / 2006 / Significant reduction of normal tissue dose by proton radiotherapy compared with threedimensional conformal or intensity-modulated radiation therapy in Stage I or Stage III non-small-cell lung cancer / Int J Radiat Oncol Biol Phys 65:1087~1096
Hall EJ / 2006 / Intensity-modulated radiation therapy, protons, and the risk of second cancers / Int J Radiat Oncol Biol Phys 65:1~7
Paganetti H / 2012 / Range uncertainties in proton therapy and the role of Monte Carlo simulations / Phys Med Biol 57:R99~117
Lomax AJ / 2004 / Treatment planning and verification of proton therapy using spot scanning : initial experiences / Med Phys 31:3150~3157
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