| Partial volume and aliasing artefacts in helical cone-beam CT. | |
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MedLine Citation:
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PMID: 15248583 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A generalization of the quasi-exact algorithms of Kudo et al (2000 IEEE Trans. Med. Imaging 19 902-21) is developed that allows for data acquisition in a 'practical' frame for clinical diagnostic helical, cone-beam computed tomography (CT). The algorithm is investigated using data that model nonlinear partial volume averaging. This investigation leads to an understanding of aliasing artefacts in helical, cone-beam CT image reconstruction. An ad hoc scheme is proposed to mitigate artefacts due to the nonlinear partial volume and aliasing artefacts. |
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Authors:
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Yu Zou; Emil Y Sidky; Xiaochuan Pan |
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Publication Detail:
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Type: Comparative Study; Evaluation Studies; Journal Article; Research Support, U.S. Gov't, P.H.S.; Validation Studies |
Journal Detail:
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Title: Physics in medicine and biology Volume: 49 ISSN: 0031-9155 ISO Abbreviation: Phys Med Biol Publication Date: 2004 Jun |
Date Detail:
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Created Date: 2004-07-13 Completed Date: 2004-12-22 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0401220 Medline TA: Phys Med Biol Country: England |
Other Details:
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Languages: eng Pagination: 2365-75 Citation Subset: IM |
Affiliation:
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Department of Radiology MC-2026, University of Chicago, 5841 S. Maryland Ave., Chicago, IL 60637, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms* Artifacts* Fourier Analysis Head / radiography Humans Imaging, Three-Dimensional / methods* Information Storage and Retrieval / methods Numerical Analysis, Computer-Assisted Phantoms, Imaging Radiographic Image Enhancement / methods* Radiographic Image Interpretation, Computer-Assisted / methods* Reproducibility of Results Sample Size Sensitivity and Specificity Signal Processing, Computer-Assisted Tomography, Spiral Computed / instrumentation, methods* |
| Grant Support | |
ID/Acronym/Agency:
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CA 70449/CA/NCI NIH HHS; EB00225/EB/NIBIB NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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