| A filtered backprojection algorithm for triple-source helical cone-beam CT. | |
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MedLine Citation:
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PMID: 19244010 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Multisource cone-beam computed tomography (CT) is an attractive approach of choice for superior temporal resolution, which is critically important for cardiac imaging and contrast enhanced studies. In this paper, we present a filtered-backprojection (FBP) algorithm for triple-source helical cone-beam CT. The algorithm is both exact and efficient. It utilizes data from three inter-helix PI-arcs associated with the inter-helix PI-lines and the minimum detection windows defined for the triple-source configuration. The proof of the formula is based on the geometric relations specific to triple-source helical cone-beam scanning. Simulation results demonstrate the validity of the reconstruction algorithm. This algorithm is also extended to a multisource version for (2N + 1)-source helical cone-beam CT. With parallel computing, the proposed FBP algorithms can be significantly faster than our previously published multisource backprojection-filtration algorithms. Thus, the FBP algorithms are promising in applications of triple-source helical cone-beam CT. |
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Authors:
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Jun Zhao; Yannan Jin; Yang Lu; Ge Wang |
Publication Detail:
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Type: Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: IEEE transactions on medical imaging Volume: 28 ISSN: 1558-0062 ISO Abbreviation: IEEE Trans Med Imaging Publication Date: 2009 Mar |
Date Detail:
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Created Date: 2009-02-26 Completed Date: 2009-06-25 Revised Date: 2010-09-22 |
Medline Journal Info:
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Nlm Unique ID: 8310780 Medline TA: IEEE Trans Med Imaging Country: United States |
Other Details:
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Languages: eng Pagination: 384-93 Citation Subset: IM |
Affiliation:
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Department of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China. junzhao@sjtu.edu.cn |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms* Cone-Beam Computed Tomography / methods* Humans Image Processing, Computer-Assisted / methods* Phantoms, Imaging Reproducibility of Results |
| Grant Support | |
ID/Acronym/Agency:
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EB002667/EB/NIBIB NIH HHS; EB004287/EB/NIBIB NIH HHS; R01 EB002667-06/EB/NIBIB NIH HHS; R33 EB004287-05/EB/NIBIB NIH HHS |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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