Evaluation of Intracranial Dural Arteriovenous Fistulas: Comparison of Unenhanced 3T 3D Time-of-flight MR Angiography with Digital Subtraction Angiography

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Author(s)

    • AZUMA Minako
    • Department of Diagnostic Radiology,Graduate School of Medical Sciences, Kumamoto University
    • YAMASHITA Yasuyuki
    • Department of Diagnostic Radiology,Graduate School of Medical Sciences, Kumamoto University
    • HIRAI Toshinori
    • Department of Diagnostic Radiology,Graduate School of Medical Sciences, Kumamoto University
    • SHIGEMATSU Yoshinori
    • Department of Diagnostic Radiology,Graduate School of Medical Sciences, Kumamoto University
    • KITAJIMA Mika
    • Department of Diagnostic Radiology,Graduate School of Medical Sciences, Kumamoto University
    • KAI Yutaka
    • Department of Neurosurgery,Graduate School of Medical Sciences, Kumamoto University|Aso Central Hospital
    • YANO Shigetoshi
    • Department of Neurosurgery,Graduate School of Medical Sciences, Kumamoto University
    • NAKAMURA Hideo
    • Department of Neurosurgery,Graduate School of Medical Sciences, Kumamoto University
    • MAKINO Keishi
    • Department of Neurosurgery,Graduate School of Medical Sciences, Kumamoto University
    • IRYO Yasuhiko
    • Department of Diagnostic Radiology,Graduate School of Medical Sciences, Kumamoto University

Abstract

Purpose: We compared gross characterization of intracranial dural arteriovenous fistulas (DAVFs) between unenhanced 3-tesla 3-dimensional (3D) time-of-flight (TOF) magnetic resonance angiography (MRA) and digital subtraction angiography (DSA).<br/>Methods: We subjected 26 consecutive patients with intracranial DAVF to unenhanced 3T 3D TOF MRA and to DSA. Two independent sets of observers inspected the main arterial feeders, fistula site, and venous drainage pattern on MRA and DSA images. Interobserver and intermodality agreements were assessed by k statistics.<br/>Results: Interobserver agreement was excellent for fistula site (κ = 0.919; 95% confidence interval [CI], 0.805 to 1.000), good for main arterial feeders (κ = 0.711; 95% CI, 0.483 to 0.984), and very good for venous drainage (κ = 0.900; 95% CI, 0.766 to 1.000). Intermodality agreement was excellent for fistula site (κ = 0.968; 95% CI, 0.906 to 1.000) and good for main arterial feeder (κ = 0.809; 95% CI, 0.598 to 1.000) and venous drainage (κ = 0.837; 95% CI, 0.660 to 1.000).<br/>Conclusion: Gross characterization of intracranial DAVF was similar for both imaging modalities, but unenhanced 3T 3D TOF MRA cannot replace DSA.

Journal

  • Magnetic Resonance in Medical Sciences

    Magnetic Resonance in Medical Sciences 14(4), 285-293, 2015

    Japanese Society for Magnetic Resonance in Medicine

Codes

  • NII Article ID (NAID)
    130005108993
  • Text Lang
    ENG
  • ISSN
    1347-3182
  • Data Source
    J-STAGE 
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