Magnetic resonance angiography in suspected cerebral vasculitis
作者： Philippe Demaerel , Nele De Ruyter , Frederik Maes , Beatrijs Velghe , Guido Wilms
DOI: 10.1007/S00330-004-2239-Y
关键词: Medicine 、 Vasculitis 、 Stenosis 、 Digital subtraction angiography 、 Neuroradiology 、 Interventional radiology 、 Angiography 、 Cerebral vasculitis 、 Radiology 、 Magnetic resonance angiography
摘要: The purpose of this study was to determine the technical capacity and diagnostic accuracy 3D time-of-flight magnetic resonance angiography (MRA) in suspected cerebral vasculitis a retrospective analysis MRA digital subtraction (DSA) 14 young patients with clinical and/or radiological suspicion vasculitis. A total nine arteries were evaluated each patient. Consensus review DSA by three observers reference standard. sensitivity for detecting stenosis varied from 62 79% 76 94% DSA, depending on observer. specificity 83 87% 97% DSA. Using criterion "more than two stenoses at least separate vascular distributions" consider examination as being true positive, false-positive rates comparable. plays role first angiographical work-up When more distributions are depicted MRA, is not expected add significant contribution patient remains necessary when normal or less seen.
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