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Lookup NU author(s): Dr Daniel Birchall, Dr Catherine Mandel, Dr Barbara Gregson, Dr Anil Gholkar OBE
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The aim of this study was to compare image quality, level of diagnostic confidence and interobserver agreement in assessment of carotid stenosis with contrast enhanced MR angiography (CE MRA) in comparison with 2D time of flight MR angiography (2D TOF MRA). 60 carotid arteries in 30 patients were examined by three observers. Image quality and diagnostic confidence were assessed on the basis of a visual analogue scale. Interobserver variability was assessed with the help of intraclass correlation coefficient. Median values on the visual analogue scale for image quality and diagnostic confidence were higher for CE MRA compared with 2D TOF MRA for all three observers. Higher intraclass correlation values were recorded for interobserver variability for CE MRA compared with 2D TOF MRA both for visual estimation of carotid stenosis as well as for measurement of carotid stenosis on the basis of North American Symptomatic Carotid Endarterectomy Trial (NASCET) and European Carotid Surgery Trial (ECST) criteria. CE MRA provides better image quality, higher level of diagnostic confidence and more interobserver agreement compared with 2D TOF MRA. © 2006 The British Institute of Radiology.
Author(s): Mitra D, Connolly D, Jenkins S, English P, Birchall D, Mandel C, Shrikanth K, Gregson B, Gholkar A
Publication type: Article
Publication status: Published
Journal: British Journal of Radiology
Year: 2006
Volume: 79
Issue: 939
Pages: 201-207
ISSN (print): 0007-1285
ISSN (electronic): 0961-2653
Publisher: British Institute of Radiology
URL: http://dx.doi.org/10.1259/bjr/72842752
DOI: 10.1259/bjr/72842752
PubMed id: 16498031
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