Spinal Dural Arteriovenous Fistula: Demonstration Using Phase Contrast MRA.Provenzale, James M.; Tien, Robert D.; Felsberg, Gary J.; Hacein-Bey, LotfiJournal of Computer Assisted Tomography: September/October 1994 Case Report: PDF Only Abstract Contrast angiography is the standard means of diagnosing spinal dural arteriovenous fistulas. We present a patient in whom a spinal dural arteriovenous fistula was demonstrated on phase contrast MR angiography. (C) Lippincott-Raven Publishers.