| 三维CT成像的数学模型 |
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| 引用本文： | 杨克柽,叶育盛,余晓锷,林意群.三维CT成像的数学模型[J].CT理论与应用研究,2006,15(1):37-41. |
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| 作者姓名： | 杨克柽 叶育盛 余晓锷 林意群 |
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| 作者单位： | 南方医科大学生物医学工程学院,广州,510515 |
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| 摘 要： | 三维CT成像广泛应用于放疗模拟定位等临床实践。当扫描运动物体时三维图像存在的位移和形变,与扫描参数设置和被扫描物体的运动状态等关系密切。本文通过理论分析CT扫描过程,建立三维成像的数学模型,计算三维图像的时间分辨率、位移和形变等指标,并分析其变化规律,为将来进一步的实验研究奠定基础。
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| 关 键 词： | CT 三维成像 数学模型 |
| 文章编号： | 1004-4140（2006）01-0037-05 |
| 收稿时间： | 2006-01-02 |
| 修稿时间： | 2006-03-03 |
Modeling of three-dimensional CT imaging |
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| YANG Ke-cheng,YE Yu-sheng,YU Xiao-e,LIN Yi-qun.Modeling of three-dimensional CT imaging[J].Computerized Tomography Theory and Applications,2006,15(1):37-41. |
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| Authors: | YANG Ke-cheng YE Yu-sheng YU Xiao-e LIN Yi-qun |
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| Institution: | School of Biomedical Engineering, Southern Medical University, Guangzhou, 510515 |
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| Abstract: | Three-dimensional CT imaging(3D-CT)is broadly applied in such clinical applications as radiotherapy simulation.The displacement and distortion of 3D-CT for moving objects lie on its moving state and the scanning parameters.A mathematical model was set up based on theoretical analysis of CT scanning process.Thus the temporal resolution,displacement and distortion of theoretical 3D image can be deduced,which establish a strong foundation for future experiment study. |
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| Keywords: | computed tomography(CT) three-dimensional imaging modeling |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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