PT - JOURNAL ARTICLE AU - L. Pierot TI - <em>Reply:</em> AID - 10.3174/ajnr.A5416 DP - 2017 Sep 21 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2017/09/21/ajnr.A5416.short 4100 - http://www.ajnr.org/content/early/2017/09/21/ajnr.A5416.full