RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E15 OP E15 DO 10.3174/ajnr.A4990 VO 38 IS 2 A1 Rouchaud, A. A1 Brinjikji, W. YR 2017 UL http://www.ajnr.org/content/38/2/E15.abstract AB