| Improved localization of spinal AV fistulas using contrast-enhanced MR angiography at 3 T | |
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MedLine Citation:
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PMID: 19517337 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The standard for the detection and localization of spinal dural and perimedullary AV fistulas has been digital subtraction angiography. The purpose of this study was to correctly locate dural AV fistulas using high-resolution (hr), contrast-enhanced (ce) MRA at 3 T or at least to estimate the site within a range of two to three segments. As a result, the radiation exposure, contrast dose and risk of complications were able to be reduced. METHODS: Five patients with typical clinical symptoms and the characteristic signs in spinal MRI were examined at 3 T (GE Signa Excite HD). Hr, ce MR angiography and a time-resolved sequence (TRICKS) were compared and correlated with the subsequent DSA and the operation record with respect to the site of the fistula. In addition, the amount of contrast agent and the number of selectively catheterized segmental arteries in DSA were analyzed. RESULTS: In all patients, a dural AV fistula was able to be demonstrated by hr, ce MRA, and the side and the segmental level of the point of the fistula were correctly predicted and confirmed in subsequent DSA as well as in the operation record. In time-resolved MRA the determined location was correct in one of the five cases. In the remaining 4 cases no definitive mapping was possible. CONCLUSION: In hr, ce MRA at 3 T the localization of the point of the fistula in a spinal AVF is highly reliable so that the radiation time and the amount of contrast medium can be reduced. Hr, ce MRA is superior to the time-resolved sequence (TRICKS). |
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Authors:
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T Boeckh-Behrens; H Bitterling; C Schichor; H Brückmann; K Seelos |
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Publication Detail:
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Type: English Abstract; Journal Article Date: 2009-06-10 |
Journal Detail:
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Title: RöFo : Fortschritte auf dem Gebiete der Röntgenstrahlen und der Nuklearmedizin Volume: 182 ISSN: 1438-9010 ISO Abbreviation: Rofo Publication Date: 2010 Jan |
Date Detail:
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Created Date: 2009-12-31 Completed Date: 2010-01-19 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7507497 Medline TA: Rofo Country: Germany |
Other Details:
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Languages: ger Pagination: 53-7 Citation Subset: IM |
Copyright Information:
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(c) Georg Thieme Verlag KG Stuttgart-New York. |
Affiliation:
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Abteilung für Neuroradiologie, Klinikum der LMU München, Standort Grosshadern, Marchioninistrasse 15, Munich. Tobias.BoeckhBehrens@med.uni-muenchen.de |
Vernacular Title:
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Verbesserte Lokalisationsdiagnostik der spinalen duralen AV-Fistel durch die CE-MRA bei 3 T. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Angiography, Digital Subtraction Central Nervous System Vascular Malformations / diagnosis*, surgery Contrast Media / administration & dosage Female Humans Image Enhancement / methods* Image Processing, Computer-Assisted / methods* Imaging, Three-Dimensional / methods* Magnetic Resonance Angiography / methods* Male Meglumine / analogs & derivatives, diagnostic use Middle Aged Organometallic Compounds / diagnostic use Sensitivity and Specificity Spinal Cord / blood supply* |
| Chemical | |
Reg. No./Substance:
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0/Contrast Media; 0/Organometallic Compounds; 113662-23-0/gadobenic acid; 6284-40-8/Meglumine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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