胸式呼吸と心拍動による肺野変形のAxial 面における粒子法シミュレーション

An excessive volume of normal tissues may be irradiated due to respiratory displacement in current standard radiation therapy of lung cancer. If motion of the lung can be predicted using biomechanical simulation, tumor tissues can be irradiated more accurately and precisely. A two-dimensional lung m...

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Bibliographic Details
Published inTransaction of the Japan Society for Simulation Technology Vol. 2; no. 3; pp. 93 - 100
Main Authors 伊藤, 広貴, 芳賀, 昭弘, 越塚, 誠一, 中川, 恵一
Format Journal Article
LanguageEnglish
Published 日本シミュレーション学会 2010
Japan Society for Simulation Technology
Subjects
4DCT
Lung cancer
Particle simulation
Radiotherapy
Respiratory displacement
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ISSN1883-5031
1883-5058
DOI10.11308/tjsst.2.93

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Summary:An excessive volume of normal tissues may be irradiated due to respiratory displacement in current standard radiation therapy of lung cancer. If motion of the lung can be predicted using biomechanical simulation, tumor tissues can be irradiated more accurately and precisely. A two-dimensional lung model is created from exhalation Computed Tomography (CT) images using image processing techniques. Lung deformation is modeled as an elastic material and simulated by a particle method. Influence of thoracic breathing and heartbeat are given as the boundary condition. The calculation results are compared with those of 4DCT data to evaluate calculation accuracy quantitatively.
ISSN:1883-5031
1883-5058
DOI:10.11308/tjsst.2.93