| Assessment of VIE image quality using helical CT angiography: in vitro phantom study. | |
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MedLine Citation:
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PMID: 15127744 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The aim of this study is to quantify the effects of helical CT acquisitions parameters on the magnitude of three-dimensional stair-step artefacts, visualization of renal ostium and morphologies of suprarenal stents observed using virtual intravascular endoscopy. This was performed in a phantom of the human abdominal aorta with a stent graft in situ. Stair-step artefacts were quantified by measuring the standard deviation of signal intensity on surface shaded images and the influence of these artefacts on the visualization of arterial ostia and stent morphologies were assessed by three radiologists. The methodology may be used to optimise the CT system performance for helical CT angiography in aortic stent grafting. |
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Authors:
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Zhonghua Sun; John R Winder; Barry E Kelly; Peter K Ellis; Peter T Kennedy; David G Hirst |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society Volume: 28 ISSN: 0895-6111 ISO Abbreviation: Comput Med Imaging Graph Publication Date: 2004 Jan-Mar |
Date Detail:
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Created Date: 2004-05-06 Completed Date: 2004-05-27 Revised Date: 2004-11-17 |
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: 3-12 Citation Subset: IM |
Affiliation:
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Room 15J 13, School of Applied Medical Sciences and Sports Studies, University of Ulster, Newtownabbey BT37 0QB, Northern Ireland, UK. zh.sun@ulster.ac.uk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Angiography* Angioscopy* Aortic Aneurysm / radiography Aortography Artifacts Humans Image Processing, Computer-Assisted* Imaging, Three-Dimensional Phantoms, Imaging* Renal Artery / radiography Stents Tomography, Spiral Computed* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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