| 双能量CT技术在电子密度测量中的应用 |
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| 引用本文： | 郝佳,张丽,邢宇翔,康克军. 双能量CT技术在电子密度测量中的应用[J]. 核电子学与探测技术, 2011, 31(10): 1082-1085 |
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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,北京100084 |
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| 摘 要： | 双能量CT能够准确地测定被扫描物质中原子序数和电子密度的分布,实现物质识别和精确测定,在医疗和安全检查等领域得到了广泛的应用.在质子和重离子放射治疗中,需要精确测定不同组织中的电子密度,为放疗方案的制定提供参考,双能量CT则为电子密度测定提供了一种精确方法.首先介绍了双能量CT技术的发展和图像重建方法以及双能量CT在物...
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| 关 键 词： | X射线成像:计算机断层成像:双能量 电子密度 |
The Application of Dual-energy CT Technique in Electron Density Measurement |
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| HAO Jia,ZHANG Li,XING Yu-xiang,KANG Ke-jun. The Application of Dual-energy CT Technique in Electron Density Measurement[J]. Nuclear Electronics & Detection Technology, 2011, 31(10): 1082-1085 |
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| Authors: | HAO Jia ZHANG Li XING Yu-xiang KANG Ke-jun |
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| Affiliation: | HAO Jia,ZHANG Li,XING Yu-xiang,KANG Ke-jun(Department of Engineering Physics,Beijing 100084,China,Key Laboratory of Particle & Radiation Imaging(Tsinghua University),Ministry of Education,China) |
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| Abstract: | Atomic number and electron density can be obtained by dual-energy CT technique with high precision.Thus,dual-energy CT technique plays an important role in material discrimination,medical diagnosing and safety check.With the development of photon and charged particle radiotherapy treatment,it becomes more and more important to obtain the distribution of electron density.Dual-energy CT offers a solution for electron density measurement.It presents the recent development of dual-energy CT and reconstruction m... |
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| Keywords: | X-ray imaging Computed Tomography Dual energy Electron density |
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