| Assessment of dural arteriovenous fistulas of the cavernous sinuses on 3D dynamic MR angiography. | |
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MedLine Citation:
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PMID: 18583402 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND AND PURPOSE: Flow voids within the cavernous sinuses and/or certain venous drainage on spin-echo MR imaging and time-of-flight (TOF) flow enhancement on MR angiography (MRA) have indicated high-velocity shunt flow and have been used for screening patients with dural arteriovenous fistulas (DAVFs) of the cavernous sinuses. In this investigation, the capabilities of 3D dynamic MRA as a flow-independent approach and those of conventional MR imaging techniques were compared with selective angiography for the diagnosis of DAVFs of the cavernous sinuses. MATERIALS AND METHODS: This retrospective study involved 18 patients with angiographically proved DAVFs of the cavernous sinuses and 12 control subjects. Sixteen partially overlapping sequential MR images were acquired on contrast-enhanced 3D dynamic MRA between the petrosal bone and the orbital roof. Two experienced observers blinded to the clinical data and results of angiography independently graded 3D dynamic MRA, fast spin-echo T2-weighted imaging (FSE T2WI), and TOF MRA. RESULTS: The average area under the receiver operating characteristic curve values and interobserver kappa scores for the diagnosis of DAVFs on 3D dynamic MRA, FSE T2WI, and TOF MRA were 0.99, 0.89, and 0.95; and 0.92, 0.71, and 0.73, respectively. Those for the diagnosis of anterior, posterior, and retrograde cortical venous drainage on 3D dynamic MRA were 0.72, 0.95, and 0.81; and 0.56, 0.50, and 0.49, respectively. CONCLUSION: In this small series, screening 3D dynamic MRA directly demonstrates DAVFs of the cavernous sinuses and has improved diagnostic capability. |
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Authors:
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H Akiba; M Tamakawa; H Hyodoh; K Hyodoh; N Yama; T Nonaka; Y Minamida; M Hashimoto; M Hareyama |
Publication Detail:
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Type: Journal Article Date: 2008-06-26 |
Journal Detail:
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Title: AJNR. American journal of neuroradiology Volume: 29 ISSN: 1936-959X ISO Abbreviation: AJNR Am J Neuroradiol Publication Date: 2008 Oct |
Date Detail:
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Created Date: 2008-10-09 Completed Date: 2008-12-23 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8003708 Medline TA: AJNR Am J Neuroradiol Country: United States |
Other Details:
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Languages: eng Pagination: 1652-7 Citation Subset: IM |
Affiliation:
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Department of Radiology, Sapporo Medical University, School of Medicine, Sapporo, Japan. akibah@sapmed.ac.jp |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Aged, 80 and over Blood Flow Velocity / physiology Case-Control Studies Cavernous Sinus* / physiopathology Central Nervous System Vascular Malformations / diagnosis*, physiopathology Cerebral Angiography Cerebral Veins / physiopathology Diagnosis, Differential Female Humans Image Processing, Computer-Assisted* Imaging, Three-Dimensional* Magnetic Resonance Angiography* Male Middle Aged Observer Variation ROC Curve Retrospective Studies Sensitivity and Specificity |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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