Improved Corrected Algorithm of Wedge Factors in Accuracy Radiotherapy

LAN Hai-yang; ZHENG Huaqing; LI Gui; #

doi:10.11804/NuclPhysRev.27.01.077

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Article Navigation > Nuclear Physics Review > 2010 > 27(1): 77-81

LAN Hai-yang, ZHENG Huaqing, LI Gui, #, . Improved Corrected Algorithm of Wedge Factors in Accuracy Radiotherapy[J]. Nuclear Physics Review, 2010, 27(1): 77-81. doi: 10.11804/NuclPhysRev.27.01.077

Citation:

LAN Hai-yang, ZHENG Huaqing, LI Gui, #, . Improved Corrected Algorithm of Wedge Factors in Accuracy Radiotherapy[J]. Nuclear Physics Review, 2010, 27(1): 77-81. doi: 10.11804/NuclPhysRev.27.01.077

Improved Corrected Algorithm of Wedge Factors in Accuracy Radiotherapy

doi: 10.11804/NuclPhysRev.27.01.077

1 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;2 Department of Applied Physics, Hefei University of Technology, Hefei 230009, China;3 Engineering Technology Research Center of Accurate Radiotherapy of Anhui Province, Hefei 230009, China;4 School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230027, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2010-03-20

Abstract

In accuracy radiotherapy, it is difficult to calculate dose accurately during wedge fields. In this paper, an improved corrected algorithm of wedges based on the lineattenuation was proposed. The lineattenuation coefficient of wedges was calculated firstly, then the actual path of radial beam in the wedge was calculated by the “linear fitting” according to the sizes of wedges section. Finally the wedge factors could be determined accurately， and the dose could be corrected. The data of the 45 degree wedge in the report of AAPM 55 were used to make the calculation and verificaton. Using this algorithm,amount of measured data were decreased, the accuracy of calculation could be assured， and the job of physician could be reduced,so this algorithm could be applied in the treatment planning system as an effective calculation method of wedges field.
- accuracy radiotherapy,
- wedge,
- wedge factor,
- line attenuation,
- dose calculation
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Improved Corrected Algorithm of Wedge Factors in Accuracy Radiotherapy

doi: 10.11804/NuclPhysRev.27.01.077

1 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;2 Department of Applied Physics, Hefei University of Technology, Hefei 230009, China;3 Engineering Technology Research Center of Accurate Radiotherapy of Anhui Province, Hefei 230009, China;4 School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230027, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2010-03-20

Key words:

Abstract: In accuracy radiotherapy, it is difficult to calculate dose accurately during wedge fields. In this paper, an improved corrected algorithm of wedges based on the lineattenuation was proposed. The lineattenuation coefficient of wedges was calculated firstly, then the actual path of radial beam in the wedge was calculated by the “linear fitting” according to the sizes of wedges section. Finally the wedge factors could be determined accurately， and the dose could be corrected. The data of the 45 degree wedge in the report of AAPM 55 were used to make the calculation and verificaton. Using this algorithm,amount of measured data were decreased, the accuracy of calculation could be assured， and the job of physician could be reduced,so this algorithm could be applied in the treatment planning system as an effective calculation method of wedges field.

LAN Hai-yang, ZHENG Huaqing, LI Gui, #, . Improved Corrected Algorithm of Wedge Factors in Accuracy Radiotherapy[J]. Nuclear Physics Review, 2010, 27(1): 77-81. doi: 10.11804/NuclPhysRev.27.01.077

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