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Direct information retrieval after 3D reconstruction in grating-based X-ray phase-contrast computed tomography
Grating-based X-ray differential phase-contrast imaging has attracted a great amount of attention and has been considered as a potential imaging method in clinical medicine because of its compatibility with the traditional X-ray tube source and the possibility of a large field of view. Moreover, pha...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
International Union of Crystallography
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6038613/ https://www.ncbi.nlm.nih.gov/pubmed/29979185 http://dx.doi.org/10.1107/S1600577518008019 |
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author | Wu, Zhao Gao, Kun Wang, Zhili Wei, Chenxi Wali, Faiz Zan, Guibin Wei, Wenbin Zhu, Peiping Tian, Yangchao |
author_facet | Wu, Zhao Gao, Kun Wang, Zhili Wei, Chenxi Wali, Faiz Zan, Guibin Wei, Wenbin Zhu, Peiping Tian, Yangchao |
author_sort | Wu, Zhao |
collection | PubMed |
description | Grating-based X-ray differential phase-contrast imaging has attracted a great amount of attention and has been considered as a potential imaging method in clinical medicine because of its compatibility with the traditional X-ray tube source and the possibility of a large field of view. Moreover, phase-contrast computed tomography provides three-dimensional phase-contrast visualization. Generally, two-dimensional information retrieval performed on every projection is required prior to three-dimensional reconstruction in phase-contrast computed tomography. In this paper, a three-dimensional information retrieval method to separate absorption and phase information directly from two reconstructed images is derived. Theoretical derivations together with numerical simulations have been performed to confirm the feasibility and veracity of the proposed method. The advantages and limitations compared with the reverse projection method are also discussed. Owing to the reduced data size and the absence of a logarithm operation, the computational time for information retrieval is shortened by the proposed method. In addition, the hybrid three-dimensional images of absorption and phase information were reconstructed using an absorption reconstruction algorithm, hence the existing data pre-processing methods and iterative reconstruction algorithms in absorption reconstruction may be utilized in phase reconstruction immediately. |
format | Online Article Text |
id | pubmed-6038613 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | International Union of Crystallography |
record_format | MEDLINE/PubMed |
spelling | pubmed-60386132018-07-12 Direct information retrieval after 3D reconstruction in grating-based X-ray phase-contrast computed tomography Wu, Zhao Gao, Kun Wang, Zhili Wei, Chenxi Wali, Faiz Zan, Guibin Wei, Wenbin Zhu, Peiping Tian, Yangchao J Synchrotron Radiat Research Papers Grating-based X-ray differential phase-contrast imaging has attracted a great amount of attention and has been considered as a potential imaging method in clinical medicine because of its compatibility with the traditional X-ray tube source and the possibility of a large field of view. Moreover, phase-contrast computed tomography provides three-dimensional phase-contrast visualization. Generally, two-dimensional information retrieval performed on every projection is required prior to three-dimensional reconstruction in phase-contrast computed tomography. In this paper, a three-dimensional information retrieval method to separate absorption and phase information directly from two reconstructed images is derived. Theoretical derivations together with numerical simulations have been performed to confirm the feasibility and veracity of the proposed method. The advantages and limitations compared with the reverse projection method are also discussed. Owing to the reduced data size and the absence of a logarithm operation, the computational time for information retrieval is shortened by the proposed method. In addition, the hybrid three-dimensional images of absorption and phase information were reconstructed using an absorption reconstruction algorithm, hence the existing data pre-processing methods and iterative reconstruction algorithms in absorption reconstruction may be utilized in phase reconstruction immediately. International Union of Crystallography 2018-06-27 /pmc/articles/PMC6038613/ /pubmed/29979185 http://dx.doi.org/10.1107/S1600577518008019 Text en © Zhao Wu et al. 2018 http://creativecommons.org/licenses/by/2.0/uk/ This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.http://creativecommons.org/licenses/by/2.0/uk/ |
spellingShingle | Research Papers Wu, Zhao Gao, Kun Wang, Zhili Wei, Chenxi Wali, Faiz Zan, Guibin Wei, Wenbin Zhu, Peiping Tian, Yangchao Direct information retrieval after 3D reconstruction in grating-based X-ray phase-contrast computed tomography |
title | Direct information retrieval after 3D reconstruction in grating-based X-ray phase-contrast computed tomography |
title_full | Direct information retrieval after 3D reconstruction in grating-based X-ray phase-contrast computed tomography |
title_fullStr | Direct information retrieval after 3D reconstruction in grating-based X-ray phase-contrast computed tomography |
title_full_unstemmed | Direct information retrieval after 3D reconstruction in grating-based X-ray phase-contrast computed tomography |
title_short | Direct information retrieval after 3D reconstruction in grating-based X-ray phase-contrast computed tomography |
title_sort | direct information retrieval after 3d reconstruction in grating-based x-ray phase-contrast computed tomography |
topic | Research Papers |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6038613/ https://www.ncbi.nlm.nih.gov/pubmed/29979185 http://dx.doi.org/10.1107/S1600577518008019 |
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