Sparse-View Spectral CT Reconstruction Using Spectral Patch-Based Low-Rank Penalty

Spectral computed tomography (CT) is a promising technique with the potential for improving lesion detection, tissue characterization, and material decomposition. In this paper, we are interested in kVp switching-based spectral CT that alternates distinct kVp X-ray transmissions during gantry rotati...

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Veröffentlicht in:	IEEE transactions on medical imaging Jg. 34; H. 3; S. 748 - 760
Hauptverfasser:	Kyungsang Kim, Jong Chul Ye, Worstell, William, Jinsong Ouyang, Rakvongthai, Yothin, El Fakhri, Georges, Quanzheng Li
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	United States IEEE 01.03.2015
Schlagworte:	Algorithms Atherosclerosis - diagnosis Computed tomography Computer Simulation Concave-convex procedure Convex functions Cost function Detectors difference of convex functions algorithm Humans Image reconstruction low-rank Materials patch Phantoms, Imaging Poisson Distribution separable quadratic surrogate spectral computed tomography (CT) Spectrometry, X-Ray Emission Switches Tomography, X-Ray Computed - instrumentation Tomography, X-Ray Computed - methods
ISSN:	0278-0062, 1558-254X, 1558-254X
Online-Zugang:	Volltext
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