PT - JOURNAL ARTICLE AU - A.M. Tawfik AU - D.M. Sobh AU - N.M. Batouty TI - <em>Reply:</em> AID - 10.3174/ajnr.A5778 DP - 2018 Aug 23 TA - American Journal of Neuroradiology 4099 - http://www.ajnr.org/content/early/2018/08/23/ajnr.A5778.short 4100 - http://www.ajnr.org/content/early/2018/08/23/ajnr.A5778.full