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

Abstract

Dentin 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°, 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.

Authors:
ORCiD logo [1];  [2];  [3];  [4];  [5]; ORCiD logo [5]
  1. The Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqing University, Chongqing 400044, China, Biomedical Imaging Division, VT-WFU School of Biomedical Engineering and Sciences, Virginia Tech, Blacksburg, VA 24061, USA
  2. The Key Laboratory of Optoelectronic Technology and Systems of the Education Ministry of China, Chongqing University, Chongqing 400044, China
  3. Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA
  4. Department of Molecular Pharmacology and Biological Chemistry, Feinberg School of Medicine, Northwestern University, 303 East Chicago Avenue, Chicago, IL 60611-3008, USA
  5. Biomedical Imaging Division, VT-WFU School of Biomedical Engineering and Sciences, Virginia Tech, Blacksburg, VA 24061, USA, Biomedical Imaging Division, VT-WFU School of Biomedical Engineering and Sciences, Wake Forest University Health Sciences, Winston-Salem, NC 27157, USA
Publication Date:
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1227784
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Published Article
Journal Name:
Computational and Mathematical Methods in Medicine
Additional Journal Information:
Journal Name: Computational and Mathematical Methods in Medicine Journal Volume: 2013; Journal ID: ISSN 1748-670X
Publisher:
Hindawi Publishing Corporation
Country of Publication:
Country unknown/Code not available
Language:
English

Citation Formats

He, Peng, Wei, Biao, Wang, Steve, Stock, Stuart R., Yu, Hengyong, and Wang, Ge. Piecewise-Constant-Model-Based Interior Tomography Applied to Dentin Tubules. Country unknown/Code not available: N. p., 2013. Web. doi:10.1155/2013/892451.
He, Peng, Wei, Biao, Wang, Steve, Stock, Stuart R., Yu, Hengyong, & Wang, Ge. Piecewise-Constant-Model-Based Interior Tomography Applied to Dentin Tubules. Country unknown/Code not available. doi:10.1155/2013/892451.
He, Peng, Wei, Biao, Wang, Steve, Stock, Stuart R., Yu, Hengyong, and Wang, Ge. Tue . "Piecewise-Constant-Model-Based Interior Tomography Applied to Dentin Tubules". Country unknown/Code not available. doi:10.1155/2013/892451.
@article{osti_1227784,
title = {Piecewise-Constant-Model-Based Interior Tomography Applied to Dentin Tubules},
author = {He, Peng and Wei, Biao and Wang, Steve and Stock, Stuart R. and Yu, Hengyong and Wang, Ge},
abstractNote = {Dentin 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°, 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.},
doi = {10.1155/2013/892451},
journal = {Computational and Mathematical Methods in Medicine},
number = ,
volume = 2013,
place = {Country unknown/Code not available},
year = {2013},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1155/2013/892451

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Cited by: 2 works
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