| Detection of internal carotid artery stenosis: comparison of MR angiography, color Doppler sonography, and arteriography. | |
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MedLine Citation:
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PMID: 1727306 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Findings of two-dimensional time-of-flight magnetic resonance (MR) angiography projection angiograms were prospectively compared with those of color Doppler sonography by using angiography as a standard in 23 consecutive patients (42 carotid bifurcations) to evaluate their utility in determining the presence of carotid artery stenosis. MR angiography helped detect 50% or greater lumen diameter stenosis (sensitivity, 0.96; specificity, 0.64). Color Doppler sonography with 1.25 m/sec peak systolic velocity as a threshold had a sensitivity of 0.96 and a specificity of 0.71. Statistical analysis showed a correlation between percentage of lumen diameter narrowing and the length of the zone of signal intensity loss with MR angiography (r = .69; P less than .0001). A stronger relationship was obtained between angiographic narrowing and peak systolic velocity derived from color Doppler sonography (r = .80; P less than .0001). Two-dimensional time-of-flight MR angiography displayed as projection angiograms and combined with carotid artery and combined with carotid artery sonography is a useful approach for helping detect and potentially grade the severity of stenoses of the carotid artery. |
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Authors:
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J F Polak; R L Bajakian; D H O'Leary; M R Anderson; M C Donaldson; F A Jolesz |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Radiology Volume: 182 ISSN: 0033-8419 ISO Abbreviation: Radiology Publication Date: 1992 Jan |
Date Detail:
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Created Date: 1992-01-16 Completed Date: 1992-01-16 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0401260 Medline TA: Radiology Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 35-40 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, Brigham and Women's Hospital, Boston, MA 02115. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Carotid Artery, Internal / pathology Carotid Stenosis / diagnosis*, epidemiology Cerebral Angiography Echoencephalography / methods Female Humans Magnetic Resonance Imaging / methods Male Prospective Studies Sensitivity and Specificity Ultrasonics |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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