Computerized tomography based on DEI refraction information
Sun, Y; Zhu PP(朱佩平); Zhu, PP; Yu, J; Chen, X
刊名COMPUTERIZED MEDICAL IMAGING AND GRAPHICS
2007
卷号31期号:6页码:383-389
关键词computerized tomgraphy DEI refraction
学科分类Engineering; Radiology, Nuclear Medicine & Medical Imaging
DOI10.1016/j.commedimg.2007.02.017
通讯作者Dalian Univ Technol, Dept Elect Engn, Dalian 116023, Liao Ning, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
英文摘要Conventional computerized tomography (CT) technique is based on the absorption contrast. In recent years, X-ray phase-contrast CT (PCCT) has been developing rapidly. It uses the phase information to reconstruct the object and provide high contrast and spatial resolution. Diffraction enhanced imaging (DEI) method is one of the three phase-sensitive X-ray imaging techniques. DEI method employs an analyzer crystal to extract the object's refraction information which can be used for CT. However, when DEI refraction CT is combined with the conventional CT algorithm, it should be satisfied that the refraction information of an arbitrary point in the object is invariable at every projection view. In this paper, the invariance condition of refraction information is analyzed and two feasible methods are provided for reconstruction. Using these two methods, two samples of weak absorption are reconstructed with the experimental data obtained at Beijing Synchrotron Radiation Facility (BSRF). (c) 2007 Elsevier Ltd. All rights reserved.
类目[WOS]Engineering, Biomedical ; Radiology, Nuclear Medicine & Medical Imaging
研究领域[WOS]Engineering ; Radiology, Nuclear Medicine & Medical Imaging
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语种英语
WOS记录号WOS:000248778500003
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/237259
专题中国科学院高能物理研究所_多学科研究中心_期刊论文
作者单位中国科学院高能物理研究所
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Sun, Y,Zhu PP,Zhu, PP,et al. Computerized tomography based on DEI refraction information[J]. COMPUTERIZED MEDICAL IMAGING AND GRAPHICS,2007,31(6):383-389.
APA Sun, Y,朱佩平,Zhu, PP,Yu, J,&Chen, X.(2007).Computerized tomography based on DEI refraction information.COMPUTERIZED MEDICAL IMAGING AND GRAPHICS,31(6),383-389.
MLA Sun, Y,et al."Computerized tomography based on DEI refraction information".COMPUTERIZED MEDICAL IMAGING AND GRAPHICS 31.6(2007):383-389.
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