RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E67 OP E68 DO 10.3174/ajnr.A6361 VO 40 IS 12 A1 Ivanidze, J. A1 Mackay, M. A1 Hoang, A. A1 Chi, J.M. A1 Cheng, K. A1 Aranow, C. A1 Volpe, B. A1 Diamond, B. A1 Sanelli, P.C. YR 2019 UL http://www.ajnr.org/content/40/12/E67.abstract AB