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Piecewise-Constant-Model-Based Interior Tomography Applied to Dentin Tubules

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dc.contributor.authorHe, Pengen
dc.contributor.authorWei, Biaoen
dc.contributor.authorWang, Steveen
dc.contributor.authorStock, Stuart R.en
dc.contributor.authorYu, Hengyongen
dc.contributor.authorWang, Geen
dc.date.accessed2014-06-11en
dc.date.accessioned2014-06-12T13:28:56Zen
dc.date.available2014-06-12T13:28:56Zen
dc.date.issued2013en
dc.description.abstractDentin is a hierarchically structured biomineralized composite material, and dentin's tubules are difficult to study in situ. Nano-CT provides the requisite resolution, but the field of view typically contains only a few tubules. Using a plate-like specimen allows reconstruction of a volume containing specific tubules from a number of truncated projections typically collected over an angular range of about 140 degrees, which is practically accessible. Classical computed tomography (CT) theory cannot exactly reconstruct an object only from truncated projections, needless to say a limited angular range. Recently, interior tomography was developed to reconstruct a region-of-interest (ROI) from truncated data in a theoretically exact fashion via the total variation (TV) minimization under the condition that the ROI is piecewise constant. In this paper, we employ a TV minimization interior tomography algorithm to reconstruct interior microstructures in dentin from truncated projections over a limited angular range. Compared to the filtered backprojection (FBP) reconstruction, our reconstruction method reduces noise and suppresses artifacts. Volume rendering confirms the merits of our method in terms of preserving the interior microstructure of the dentin specimen.en
dc.description.sponsorshipUS NIH/NIBIB EB011785en
dc.description.sponsorshipUS NICDR DE001374en
dc.description.sponsorshipNational Natural Science Foundation of China 61171157en
dc.description.sponsorshipUS Department of Energy, Office of Science, Office of Basic Energy Sciences DE-AC02-06CH11357en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationPeng He, Biao Wei, Steve Wang, Stuart R. Stock, Hengyong Yu, and Ge Wang, "Piecewise-Constant-Model-Based Interior Tomography Applied to Dentin Tubules," Computational and Mathematical Methods in Medicine, vol. 2013, Article ID 892451, 8 pages, 2013. doi:10.1155/2013/892451en
dc.identifier.doihttps://doi.org/10.1155/2013/892451en
dc.identifier.issn1748-670Xen
dc.identifier.urihttp://hdl.handle.net/10919/48909en
dc.identifier.urlhttp://www.hindawi.com/journals/cmmm/2013/892451/cta/en
dc.language.isoenen
dc.publisherHindawi Publishing Corporationen
dc.rightsCreative Commons Attribution 3.0 Unporteden
dc.rights.holderCopyright © 2013 Peng He et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.en
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectiterative algorithmsen
dc.subjectimage-reconstructionen
dc.subjectprojection dataen
dc.subjecthumanen
dc.subjectteethen
dc.subjectrayen
dc.subjectmicroscopyen
dc.subjectsarten
dc.subjectarten
dc.subjectmathematical & computational biologyen
dc.titlePiecewise-Constant-Model-Based Interior Tomography Applied to Dentin Tubulesen
dc.title.serialComputational and Mathematical Methods in Medicineen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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