| Possibilities and limitations in imaging the intracranial arteries in the context of a contrast-enhanced whole-body magnetic resonance angiographic screening protocol at 1.5 versus 3 tesla. | |
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MedLine Citation:
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PMID: 21150452 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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OBJECTIVE: : Evaluation of the diagnostic detectability of the intracranial vasculature on contrast-enhanced whole-body magnetic resonance angiographic (WBMRA) scans at 1.5 versus 3 T. METHODS: : Twenty-seven patients with hereditary hyperlipidemia participated. Two experienced neuroradiologists scored the image quality regarding the intracranial arteries applying a 5-point scale. Stenoses and other findings were documented. Weighted κ-statistics were calculated to assess interobserver agreement. RESULTS: : Interobserver agreement was very good. Image quality scoring resulted in the following mean values: 3.0 at 1.5 T versus 3.9 at 3 T (P < 0.001). Venous contrast overlay and insufficient anatomic coverage occurred in both groups. Three stenoses were found at both field strengths. CONCLUSIONS: : Assessment of the intracranial vasculature on WBMRA data is basically feasible; image quality at 3 T seems superior. Shortcomings appear because of venous contamination and insufficient volume coverage. Therefore, adding a dedicated intracranial MRA to a WBMRA protocol would substantially increase diagnostic certainty. |
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Authors:
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Jan-Hendrik Buhk; Thorsten Ries; Anna-Katharina Finck-Wedel; Frank Ulrich Beil; Gerhard Adam; Christoph Weber |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of computer assisted tomography Volume: 35 ISSN: 1532-3145 ISO Abbreviation: J Comput Assist Tomogr Publication Date: 2011 Jan-Feb |
Date Detail:
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Created Date: 2011-01-19 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7703942 Medline TA: J Comput Assist Tomogr Country: United States |
Other Details:
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Languages: eng Pagination: 4-8 Citation Subset: IM |
Affiliation:
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From the Departments of *Diagnostic and Interventional Radiology, †Neuroradiology, and ‡Internal Medicine, Medical Clinic III, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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