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Chord-based image reconstruction in cone-beam CT with a curved detector
Zuo, Nianming; Xia, Dan; Zou, Yu; Jiang, Tianzi; Pan, Xiao-Chuan
2006-10-01
发表期刊MEDICAL PHYSICS
卷号33期号:10页码:3743-3757
文章类型Article
摘要Modern computed tomography (CT) scanners use cone-beam configurations for increasing volume coverage, improving x-ray-tube utilization, and yielding isotropic spatial resolution. Recently, there have been significant developments in theory and algorithms for exact image reconstruction from cone-beam projections. In particular, algorithms have been proposed for image reconstruction on chords; and advantages over the existing algorithms offered by the chord-based algorithms include the high flexibility of exact image reconstruction for general scanning trajectories and the capability of exact reconstruction of images within a region of interest from truncated data. These chord-based algorithms have been developed only for flat-panel detectors. Many cone-beam CT scanners employ curved detectors for important practical considerations. Therefore, in this work, we have derived chord-based algorithms for a curved detector so that they can be applied to reconstructing images directly from data acquired by use of a CT scanner with a curved detector. We have also conducted preliminary numerical studies to demonstrate and evaluate the reconstruction properties of the derived chord-based algorithms for curved detectors. (c) 2006 American Association of Physicists in Medicine.
关键词Computed Tomography Cone-beam Curved Detector Chords Image Reconstruction Noise Property
WOS标题词Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]FILTERED-BACKPROJECTION ALGORITHM ; REGIONS-OF-INTEREST ; COMPUTED-TOMOGRAPHY ; FAN-BEAM ; MINIMUM DATA ; PI-LINES ; FILTRATION ; PROJECTION ; SCAN
收录类别SCI
语种英语
WOS研究方向Radiology, Nuclear Medicine & Medical Imaging
WOS类目Radiology, Nuclear Medicine & Medical Imaging
WOS记录号WOS:000241424100017
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ia.ac.cn/handle/173211/9369
专题09年以前成果
作者单位1.Univ Chicago, Dept Radiol, Chicago, IL 60637 USA
2.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China
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GB/T 7714
Zuo, Nianming,Xia, Dan,Zou, Yu,et al. Chord-based image reconstruction in cone-beam CT with a curved detector[J]. MEDICAL PHYSICS,2006,33(10):3743-3757.
APA Zuo, Nianming,Xia, Dan,Zou, Yu,Jiang, Tianzi,&Pan, Xiao-Chuan.(2006).Chord-based image reconstruction in cone-beam CT with a curved detector.MEDICAL PHYSICS,33(10),3743-3757.
MLA Zuo, Nianming,et al."Chord-based image reconstruction in cone-beam CT with a curved detector".MEDICAL PHYSICS 33.10(2006):3743-3757.
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