An approximate reconstruction method for helical cone-beam differential phase-contrast computed tomography images

	An approximate reconstruction method for helical cone-beam differential phase-contrast computed tomography images
	Li, J; 朱佩平; Zhu, PP; Sun, Y
刊名	PHYSICS IN MEDICINE AND BIOLOGY
	2012
卷号	57 期号:8 页码:2347-2356
英文摘要	Differential phase-contrast computed tomography (DPC-CT) is a novel x-ray inspection method. Currently, DPC-CT reconstruction problems are solved by using parallel-beam, fan-beam and cone-beam algorithms. The above algorithms cannot show the internal structures of rod-shaped objects well enough for only reconstructing a few slices. The helical cone-beam algorithms have significant advantages for rod-shaped objects over other algorithms. Along with our numerical evaluation and verification, we report a PI-line-based approximate algorithm for helical cone-beam DPC-CT, which can be applied to reconstruct the refractive index decrement distribution of the samples directly from phase-contrast projection images. Simulations using a 3D Shepp-Logan phantom are carried out to verify the proposed algorithm. Reconstruction results show that the proposed algorithm can provide higher quality performance compared with the existing interpolation-based reconstruction algorithm.
学科主题	Engineering; Radiology, Nuclear Medicine & Medical Imaging
收录类别	SCI
WOS记录号	WOS:000302567100016
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/224201]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Li, J,朱佩平； Zhu, PP,Sun, Y. An approximate reconstruction method for helical cone-beam differential phase-contrast computed tomography images[J]. PHYSICS IN MEDICINE AND BIOLOGY,2012,57(8):2347-2356.
APA	Li, J,朱佩平； Zhu, PP,&Sun, Y.(2012).An approximate reconstruction method for helical cone-beam differential phase-contrast computed tomography images.PHYSICS IN MEDICINE AND BIOLOGY,57(8),2347-2356.
MLA	Li, J,et al."An approximate reconstruction method for helical cone-beam differential phase-contrast computed tomography images".PHYSICS IN MEDICINE AND BIOLOGY 57.8(2012):2347-2356.