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A Fast CT Reconstruction Scheme for a General Multi-Core PC

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dc.contributor.authorZeng, Kaien
dc.contributor.authorBai, Erweien
dc.contributor.authorWang, Geen
dc.contributor.departmentSchool of Biomedical Engineering and Sciencesen
dc.date.accessioned2017-09-18T10:05:29Zen
dc.date.available2017-09-18T10:05:29Zen
dc.date.issued2007-07-04en
dc.date.updated2017-09-18T10:05:29Zen
dc.description.abstractExpensive computational cost is a severe limitation in CT reconstruction for clinical applications that need real-time feedback. A primary example is bolus-chasing computed tomography (CT) angiography (BCA) that we have been developing for the past several years. To accelerate the reconstruction process using the filtered backprojection (FBP) method, specialized hardware or graphics cards can be used. However, specialized hardware is expensive and not flexible. The graphics processing unit (GPU) in a current graphic card can only reconstruct images in a reduced precision and is not easy to program. In this paper, an acceleration scheme is proposed based on a multi-core PC. In the proposed scheme, several techniques are integrated, including utilization of geometric symmetry, optimization of data structures, single-instruction multiple-data (SIMD) processing, multithreaded computation, and an Intel C++ compilier. Our scheme maintains the original precision and involves no data exchange between the GPU and CPU. The merits of our scheme are demonstrated in numerical experiments against the traditional implementation. Our scheme achieves a speedup of about 40, which can be further improved by several folds using the latest quad-core processors.en
dc.description.versionPublished versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationKai Zeng, Erwei Bai, and Ge Wang, “A Fast CT Reconstruction Scheme for a General Multi-Core PC,” International Journal of Biomedical Imaging, vol. 2007, Article ID 29160, 9 pages, 2007. doi:10.1155/2007/29160en
dc.identifier.doihttps://doi.org/10.1155/2007/29160en
dc.identifier.urihttp://hdl.handle.net/10919/79075en
dc.language.isoenen
dc.publisherHindawien
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.holderCopyright © 2007 Kai Zeng 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/4.0/en
dc.titleA Fast CT Reconstruction Scheme for a General Multi-Core PCen
dc.title.serialInternational Journal of Biomedical Imagingen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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