Iterative Reconstruction In X-ray Fluorescence Tomography Based On Radon Inversion.

dc.creatorMiqueles, Eduardo X
dc.creatorDe Pierro, Alvaro R
dc.date2011-Feb
dc.date2015-11-27T13:21:39Z
dc.date2015-11-27T13:21:39Z
dc.date.accessioned2018-03-29T01:13:31Z
dc.date.available2018-03-29T01:13:31Z
dc.identifierIeee Transactions On Medical Imaging. v. 30, n. 2, p. 438-50, 2011-Feb.
dc.identifier1558-254X
dc.identifier10.1109/TMI.2010.2085011
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/20934947
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/199531
dc.identifier20934947
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1299764
dc.descriptionWe describe a new approach for the inversion of the generalized attenuated radon transform in X-ray fluorescence computed tomography (XFCT). The approach consists of using the radon inverse as an approximation for the actual one, followed by an iterative refinement. Also, we analyze the problem of retrieving the attenuation map directly from the emission data, giving rise to a novel alternating method for the solution. We applied our approach to real and simulated XFCT data and compared its performance to previous inversion algorithms for the problem, showing its main advantages: better images than those obtained by other analytic methods and much faster than iterative methods in the discrete setting.
dc.description30
dc.description438-50
dc.languageeng
dc.relationIeee Transactions On Medical Imaging
dc.relationIEEE Trans Med Imaging
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAlgorithms
dc.subjectImage Processing, Computer-assisted
dc.subjectModels, Theoretical
dc.subjectPhantoms, Imaging
dc.subjectSpectrometry, X-ray Emission
dc.subjectTomography, X-ray
dc.titleIterative Reconstruction In X-ray Fluorescence Tomography Based On Radon Inversion.
dc.typeArtículos de revistas


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