First-Pass Contrast-Enhanced MRA for Pretherapeutic Diagnosis of Spinal Epidural Arteriovenous Fistulas with Intradural Venous Reflux

From the Division of Diagnostic and Interventional Neuroradiology, Department of Medical Imaging (S.M., T.J.H., P.M., W.M., A.B.), St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; and Division of Neuroradiology, Department of Medical Imaging (S.M., S.P.S., T.J.H.) and Department of Otolaryngology–Head and Neck Surgery (S.P.S.), Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.

From the Division of Diagnostic and Interventional Neuroradiology, Department of Medical Imaging (S.M., T.J.H., P.M., W.M., A.B.), St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; and Division of Neuroradiology, Department of Medical Imaging (S.M., S.P.S., T.J.H.) and Department of Otolaryngology–Head and Neck Surgery (S.P.S.), Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.

From the Division of Diagnostic and Interventional Neuroradiology, Department of Medical Imaging (S.M., T.J.H., P.M., W.M., A.B.), St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; and Division of Neuroradiology, Department of Medical Imaging (S.M., S.P.S., T.J.H.) and Department of Otolaryngology–Head and Neck Surgery (S.P.S.), Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.

From the Division of Diagnostic and Interventional Neuroradiology, Department of Medical Imaging (S.M., T.J.H., P.M., W.M., A.B.), St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; and Division of Neuroradiology, Department of Medical Imaging (S.M., S.P.S., T.J.H.) and Department of Otolaryngology–Head and Neck Surgery (S.P.S.), Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.

From the Division of Diagnostic and Interventional Neuroradiology, Department of Medical Imaging (S.M., T.J.H., P.M., W.M., A.B.), St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; and Division of Neuroradiology, Department of Medical Imaging (S.M., S.P.S., T.J.H.) and Department of Otolaryngology–Head and Neck Surgery (S.P.S.), Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.

From the Division of Diagnostic and Interventional Neuroradiology, Department of Medical Imaging (S.M., T.J.H., P.M., W.M., A.B.), St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; and Division of Neuroradiology, Department of Medical Imaging (S.M., S.P.S., T.J.H.) and Department of Otolaryngology–Head and Neck Surgery (S.P.S.), Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada.