| Comparison of magnetic resonance angiography, conventional angiography, and duplex scanning. | |
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MedLine Citation:
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PMID: 1542893 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND PURPOSE: To determine the accuracy of magnetic resonance angiography in assessing patients with cerebrovascular disease, we performed a study comparing the results of conventional cerebral angiography, duplex scanning, and magnetic resonance angiography. METHODS: From 42 patients, a total of 25 carotid arteries were evaluated by all three techniques. The studies were independently read and sorted into five categories according to the degree of stenosis: 0-15%, normal; 16-49%, mild; 50-79%, moderate; 80-99%, severe; and totally occluded. RESULTS: Magnetic resonance angiography correlated exactly with conventional angiography in 39 arteries (52%); duplex scanning correlated with conventional angiography in 49 cases (65%). Compared with conventional angiography, both magnetic resonance angiography and duplex scanning tended to overread the degree of stenosis. The most critical errors associated with magnetic resonance angiography were three readings of total occlusion in vessels found to be patent on conventional angiograms. CONCLUSIONS: Although magnetic resonance angiography offers great hope of providing high-quality imaging of the carotid artery with no risk and at less cost, data from this study suggest that misreading the degree of stenosis, or misinterpreting a stenosis for an occlusion, could lead to errors in clinical decisions. Guidelines for use of magnetic resonance angiography in a clinical setting are offered. |
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Authors:
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T S Riles; E M Eidelman; A W Litt; R S Pinto; F Oldford; G W Schwartzenberg |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Stroke; a journal of cerebral circulation Volume: 23 ISSN: 0039-2499 ISO Abbreviation: Stroke Publication Date: 1992 Mar |
Date Detail:
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Created Date: 1992-04-08 Completed Date: 1992-04-08 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0235266 Medline TA: Stroke Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 341-6 Citation Subset: IM |
Affiliation:
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Department of Surgery, New York University Medical Center, N.Y. 10016. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Carotid Arteries / surgery Carotid Artery Diseases / diagnosis, radiography, surgery Cerebral Angiography* Endarterectomy Female Humans Magnetic Resonance Imaging* Male Middle Aged Prospective Studies Ultrasonography |
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