RT Journal Article SR Electronic T1 Reply: JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP E46 OP E47 DO 10.3174/ajnr.A4780 VO 37 IS 5 A1 G. Cattaneo A1 M. Schumacher A1 G. Trummer A1 H. Urbach A1 S. Meckel YR 2016 UL http://www.ajnr.org/content/37/5/E46.abstract AB