PT - JOURNAL ARTICLE AU - A. Rouchaud AU - W. Brinjikji TI - Reply: AID - 10.3174/ajnr.A4990 DP - 2016 Oct 13 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2016/10/13/ajnr.A4990.short 4100 - http://www.ajnr.org/content/early/2016/10/13/ajnr.A4990.full