RT Journal Article SR Electronic T1 CT Perfusion of the Neck: Internal Carotid Artery versus External Carotid Artery as the Reference Artery JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1531 A1 Miracle, A.C. A1 Rezaei, A. A1 Gandhi, D. A1 Mukherji, S.K. YR 2009 UL http://www.ajnr.org/content/early/2009/04/15/ajnr.A1531.abstract AB