| Data correction for gantry-tilted local CT. | |
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MedLine Citation:
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PMID: 18314308 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The gantry-tilted helical cone-beam computed tomography (CT) has an inherent problem that the relative shift of the region of interest (ROI) blurs the reconstructed image. This problem becomes more serious in the gantry-tilted local CT imaging due to the nature of local scanning. This paper proposes a new method to improve the gantry-tilted local imaging by correcting the local scanning data. Computer simulations show that the proposed method can enhance the local imaging performance to a certain extent in terms of the image sharpening and artifacts reduction. |
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Authors:
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Hongzhu Liang; Cishen Zhang; Ming Yan |
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Publication Detail:
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Type: Journal Article Date: 2008-03-07 |
Journal Detail:
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Title: Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society Volume: 32 ISSN: 0895-6111 ISO Abbreviation: Comput Med Imaging Graph Publication Date: 2008 Jun |
Date Detail:
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Created Date: 2008-04-14 Completed Date: 2008-10-21 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8806104 Medline TA: Comput Med Imaging Graph Country: United States |
Other Details:
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Languages: eng Pagination: 251-7 Citation Subset: IM |
Affiliation:
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School of Electrical and Electronic Engineering, BLK S2, Nanyang Technological University, Singapore 639798, Singapore. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms Artifacts Computer Simulation Head / radiography* Humans Phantoms, Imaging Posture Radiation Dosage Radiographic Image Enhancement / methods* Radiographic Image Interpretation, Computer-Assisted / methods* Tomography, Spiral Computed / methods* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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