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A primary example is bolus\u2010chasing 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\u2010core PC. In the proposed scheme, several techniques are integrated, including utilization of geometric symmetry, optimization of data structures, single\u2010instruction multiple\u2010data (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\u2010core processors.<\/jats:p>","DOI":"10.1155\/2007\/29160","type":"journal-article","created":{"date-parts":[[2007,7,9]],"date-time":"2007-07-09T11:55:33Z","timestamp":1183982133000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["A Fast CT Reconstruction Scheme for a General Multi\u2010Core PC"],"prefix":"10.1155","volume":"2007","author":[{"given":"Kai","family":"Zeng","sequence":"first","affiliation":[]},{"given":"Erwei","family":"Bai","sequence":"additional","affiliation":[]},{"given":"Ge","family":"Wang","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2007,7,4]]},"reference":[{"key":"e_1_2_1_1_2","first-page":"27","article-title":"Study of an adaptive bolus chasing CT angiography","volume":"14","author":"Bai E.","year":"2006","journal-title":"Journal of X-Ray Science and Technology"},{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1109\/42.897815"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/TNS.2005.851398"},{"volume-title":"Computer Graphics: Principles and Practice","year":"1990","author":"Foley J.","key":"e_1_2_1_4_2"},{"key":"e_1_2_1_5_2","doi-asserted-by":"crossref","unstructured":"MuellerK.andXuF. 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