A theoretically exact reconstruction algorithm for helical cone-beam differential phase-contrast computed tomography
Li, J; Sun, Y; 朱佩平;Zhu, PP
刊名PHYSICS IN MEDICINE AND BIOLOGY
2013
卷号58期号:16页码:5421-5432
学科分类Engineering; Radiology, Nuclear Medicine & Medical Imaging
DOI10.1088/0031-9155/58/16/5421
英文摘要Differential phase-contrast computed tomography (DPC-CT) reconstruction problems are usually solved by using parallel-, fan- or cone-beam algorithms. For rod-shaped objects, the x-ray beams cannot recover all the slices of the sample at the same time. Thus, if a rod-shaped sample is required to be reconstructed by the above algorithms, one should alternately perform translation and rotation on this sample, which leads to lower efficiency. The helical cone-beam CT may significantly improve scanning efficiency for rod-shaped objects over other algorithms. In this paper, we propose a theoretically exact filter-backprojection algorithm for helical cone-beam DPC-CT, which can be applied to reconstruct the refractive index decrement distribution of the samples directly from two-dimensional differential phase-contrast images. Numerical simulations are conducted to verify the proposed algorithm. Our work provides a potential solution for inspecting the rod-shaped samples using DPC-CT, which may be applicable with the evolution of DPC-CT equipments.
收录类别SCI
WOS记录号WOS:000322775300007
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被引频次:1[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/311005/224262
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
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Li, J,Sun, Y,朱佩平;Zhu, PP. A theoretically exact reconstruction algorithm for helical cone-beam differential phase-contrast computed tomography[J]. PHYSICS IN MEDICINE AND BIOLOGY,2013,58(16):5421-5432.
APA Li, J,Sun, Y,&朱佩平;Zhu, PP.(2013).A theoretically exact reconstruction algorithm for helical cone-beam differential phase-contrast computed tomography.PHYSICS IN MEDICINE AND BIOLOGY,58(16),5421-5432.
MLA Li, J,et al."A theoretically exact reconstruction algorithm for helical cone-beam differential phase-contrast computed tomography".PHYSICS IN MEDICINE AND BIOLOGY 58.16(2013):5421-5432.
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