RT Journal Article SR Electronic T1 MR Perfusion Imaging of Hyperacute Stroke JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 806 OP 806 VO 22 IS 5 A1 Detre, John A. YR 2001 UL http://www.ajnr.org/content/22/5/806.abstract AB