RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E8 OP E8 DO 10.3174/ajnr.A4987 VO 38 IS 1 A1 Brinjikji, W. A1 Rouchaud, A. YR 2017 UL http://www.ajnr.org/content/38/1/E8.abstract AB