RT Journal Article SR Electronic T1 Medullary Edema and Enhancement with a Straight Upper Border in Cases of Dural Arteriovenous Fistulas JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E90 OP E91 DO 10.3174/ajnr.A5681 VO 39 IS 8 A1 D. Byrne A1 J.P. Walsh A1 T. Lynch A1 E.C. Kavanagh YR 2018 UL http://www.ajnr.org/content/39/8/E90.abstract AB