RT Journal Article SR Electronic T1 Improved Delineation of Ventricular Shunt Catheters Using Fast Steady-State Gradient Recalled-Echo Sequences in a Rapid Brain MR Imaging Protocol in Nonsedated Pediatric Patients JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology DO 10.3174/ajnr.A1866 A1 J.H. Miller A1 T. Walkiewicz A1 R.B. Towbin A1 J.G. Curran YR 2009 UL http://www.ajnr.org/content/early/2009/11/26/ajnr.A1866.abstract AB