RT Journal Article SR Electronic T1 Improved Identification of Intracortical Lesions in Multiple Sclerosis with Phase-Sensitive Inversion Recovery in Combination with Fast Double Inversion Recovery MRI JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A0645 A1 F. Nelson A1 A.H. Poonawalla A1 P. Hou A1 F. Huang A1 J.S. Wolinsky A1 P.A. Narayana YR 2007 UL http://www.ajnr.org/content/early/2007/09/20/ajnr.A0645.abstract AB