| 基于同步辐射光源的双能CT成像方法 |
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| 引用本文： | 郝佳,张丽,邢宇翔,康克军. 基于同步辐射光源的双能CT成像方法[J]. 清华大学学报(自然科学版), 2011, 0(4): 457-461 |
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| 作者姓名： | 郝佳 张丽 邢宇翔 康克军 |
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| 作者单位： | 清华大学工程物理系粒子技术与辐射成像教育部重点实验室; |
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| 摘 要： | 双能X射线CT成像技术可以精确地获得被扫描物体中的电子密度分布,对于医疗诊断和癌症放射治疗具有重要的参考价值。为了提高双能CT重建精度,该文提出了一种基于同步辐射光源的双能CT成像方法,并对相干光的后处理重建算法进行了研究。同步辐射光源具有一系列的优势。使用不同物质进行双能CT成像数值模拟可以发现：采用同步辐射光源进行...
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| 关 键 词： | 双能量CT 电子密度 同步辐射 X射线成像 |
Dual-energy CT imaging method using synchrotron radiation |
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| HAO Jia,ZHANG Li,XING Yuxiang,KANG Kejun. Dual-energy CT imaging method using synchrotron radiation[J]. Journal of Tsinghua University(Science and Technology), 2011, 0(4): 457-461 |
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| Authors: | HAO Jia ZHANG Li XING Yuxiang KANG Kejun |
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| Affiliation: | HAO Jia,ZHANG Li,XING Yuxiang,KANG Kejun(Key Laboratory of Particle & Radiation Imaging of the Ministry of Education,Department of Engineering Physics,Tsinghua University,Beijing 100084,China) |
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| Abstract: | The distribution of electron density can be obtained by dual-energy imaging technology with high precision,which is important for medical diagnosis and treatment planning in the radiotherapy.A dual-energy CT imaging method was developed using synchrotron radiation to improve the reconstruction,with the interference light post-processing algorithm analyzed for reconstruction.Numerical simulations with different materials were implemented using the post-processing reconstruction method to show that the electr... |
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| Keywords: | dual-energy CT electron density synchrotron radiation X-ray imaging |
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