| Detection and grading of dAVF: prospects and limitations of 3T MRI. | |
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MedLine Citation:
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PMID: 21932162 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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OBJECTIVES: DSA is currently the criterion standard for the assessment of dural arteriovenous fistulas (dAVF). Recently, evolving MRA techniques have emerged as a non-invasive alternative. The aim of this study is to assess the value of 3 T MRI in detecting and describing dAVF and to determine whether MRI can replace DSA as diagnostic procedure. METHODS: A total of 19 patients with dAVF and 19 without dAVF underwent the same MRI protocol, including 3D time-of-flight MRA and time-resolved contrast-enhanced MRA. The images were evaluated retrospectively by three independent readers with different levels of experience blinded to clinical information. The readers assessed the presence, the site, the venous drainage and the feeders of dAVF. Sensitivity, specificity, accuracy, intertechnique and interobserver agreements were calculated. RESULTS: DAVF can be detected with high sensitivity, specificity and accuracy by experienced and also by less experienced readers. However, MRI has limitations when used for grading and evaluation of the angioarchitecture of the dAVF. Different experience, the limited resolution of MRI and its inability to selectively display arteries were the reasons for these limitations. CONCLUSIONS: With MRI dAVF can be detected reliably. Nevertheless, at present MRI can not fully replace DSA, especially for treatment planning. |
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Authors:
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Andrea Bink; Joachim Berkefeld; Marlies Wagner; Se-Jong You; Hanns Ackermann; Matthias W Lorenz; Christian Senft; Richard du Mesnil de Rochemont |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-21 |
Journal Detail:
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Title: European radiology Volume: - ISSN: 1432-1084 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-20 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9114774 Medline TA: Eur Radiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Neuroradiology, Johann Wolfgang Goethe University, Schleusenweg 2-16, Haus 95, D-60528, Frankfurt am Main, Germany, andrea.bink@kgu.de. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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