| Carotid artery stenosis: optimization of CT angiography with a combination of shaded surface display and source images. | |
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MedLine Citation:
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PMID: 9127046 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To evaluate the accuracy of CT angiography of occlusive disease of the carotid arteries using three-dimensional surface-rendered images alone and in conjunction with display of axial source images. METHODS: Forty-eight symptomatic patients had conventional angiography followed by CT angiography within 24 hours. Images of 96 carotid arteries were acquired using contrast-enhanced spiral CT. Image postprocessing was performed on a free-standing workstation to produce 3-D shaded surface display (SSD) images. Two readers independently evaluated the CT angiographic (SSD) images and then reevaluated each case while simultaneously reviewing the SSD and axial source images. Digital subtraction angiograms were evaluated in a separate session and eventually compared with CT angiograms. All evaluations were performed under blinded conditions to control for reader bias. RESULTS: SSD images alone underestimated stenosis relative to angiograms whereas combined SSD and axial images did not. CONCLUSION: SSD angiograms in conjunction with the source images are better than SSD images alone in estimating the degree of stenosis in carotid artery disease. |
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Authors:
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Z Papp; M Patel; M Ashtari; M Takahashi; J Goldstein; W Maguire; P G Herman |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: AJNR. American journal of neuroradiology Volume: 18 ISSN: 0195-6108 ISO Abbreviation: AJNR Am J Neuroradiol Publication Date: 1997 Apr |
Date Detail:
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Created Date: 1997-06-24 Completed Date: 1997-06-24 Revised Date: 2008-02-14 |
Medline Journal Info:
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Nlm Unique ID: 8003708 Medline TA: AJNR Am J Neuroradiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 759-63 Citation Subset: IM |
Affiliation:
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Department of Radiology, Long Island Campus for the Albert Einstein College of Medicine, New Hyde Park, NY 11040, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Angiography, Digital Subtraction* / methods Carotid Stenosis / radiography* Computer Systems Data Display Female Humans Image Processing, Computer-Assisted* / methods Male Middle Aged Observer Variation Radiographic Image Enhancement / methods Single-Blind Method Tomography, X-Ray Computed* / methods |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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