Monte Carlo Simulation of Field Patching Technique in Carbon Ion Beam Therapy

HUANG Qiyan; LIU Xinguo; DAI Zhongying; HE Pengbo; SHEN Guosheng; MA Yuanyuan; YAN Yuanlin; FU Tingyan; LI Qiang

doi:10.11804/NuclPhysRev.32.01.115

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Article Navigation > Nuclear Physics Review > 2015 > 32(1): 115-120

HUANG Qiyan, LIU Xinguo, DAI Zhongying, HE Pengbo, SHEN Guosheng, MA Yuanyuan, YAN Yuanlin, FU Tingyan, LI Qiang. Monte Carlo Simulation of Field Patching Technique in Carbon Ion Beam Therapy[J]. Nuclear Physics Review, 2015, 32(1): 115-120. doi: 10.11804/NuclPhysRev.32.01.115

Citation:

HUANG Qiyan, LIU Xinguo, DAI Zhongying, HE Pengbo, SHEN Guosheng, MA Yuanyuan, YAN Yuanlin, FU Tingyan, LI Qiang. Monte Carlo Simulation of Field Patching Technique in Carbon Ion Beam Therapy[J]. Nuclear Physics Review, 2015, 32(1): 115-120. doi: 10.11804/NuclPhysRev.32.01.115

Monte Carlo Simulation of Field Patching Technique in Carbon Ion Beam Therapy

doi: 10.11804/NuclPhysRev.32.01.115

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;
Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-03-20

Abstract

To characterize the theoretical basis of eld patching technique in carbon ion beam therapy, Monte Carlo software package Gate/Geant4 was used to simulate the lateral dose distribution of matched elds. The lateral dose distribution of the matched elds within 1.0 millimeter of patient positioning error and the relationship between the central dose of the matched elds and the eld patching gap were obtained. Moreover, the lateral dose pro le of eld patching irradiation with 5.0 mm gap was simulated. While comparing the lateral dose distribution of eld patching irradiation with 5.0 mm gap with the undivided eld irradiation, a good agreement between both results with a maximum dose deviation of 6.8% was observed within the target volume.Hence a feasible method for solving the issue of dose hotspots during eld patching under the condition of higher patient positioning accuracies (patient positioning error within 1.0 millimeter) was proposed and the dose homogeneit within the target volume could be greatly improved when eld patching technique is adopted in carbon ion beam therapy.
- carbon ion beam therapy,
- eld patching,
- Monte Carlo,
- Gate/Geant4,
- lateral dose distribution
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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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Monte Carlo Simulation of Field Patching Technique in Carbon Ion Beam Therapy

doi: 10.11804/NuclPhysRev.32.01.115

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China;

Key Laboratory of Heavy Ion Radiation Biology and Medicine of Chinese Academy of Sciences, Lanzhou 730000, China;

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2015-03-20

Key words:

Abstract: To characterize the theoretical basis of eld patching technique in carbon ion beam therapy, Monte Carlo software package Gate/Geant4 was used to simulate the lateral dose distribution of matched elds. The lateral dose distribution of the matched elds within 1.0 millimeter of patient positioning error and the relationship between the central dose of the matched elds and the eld patching gap were obtained. Moreover, the lateral dose pro le of eld patching irradiation with 5.0 mm gap was simulated. While comparing the lateral dose distribution of eld patching irradiation with 5.0 mm gap with the undivided eld irradiation, a good agreement between both results with a maximum dose deviation of 6.8% was observed within the target volume.Hence a feasible method for solving the issue of dose hotspots during eld patching under the condition of higher patient positioning accuracies (patient positioning error within 1.0 millimeter) was proposed and the dose homogeneit within the target volume could be greatly improved when eld patching technique is adopted in carbon ion beam therapy.

Citation:

HUANG Qiyan, LIU Xinguo, DAI Zhongying, HE Pengbo, SHEN Guosheng, MA Yuanyuan, YAN Yuanlin, FU Tingyan, LI Qiang. Monte Carlo Simulation of Field Patching Technique in Carbon Ion Beam Therapy[J]. Nuclear Physics Review, 2015, 32(1): 115-120. doi: 10.11804/NuclPhysRev.32.01.115