TY - JOUR T1 - Use of Three-dimensional MR Angiography for Tracking a Contrast Bolus in the Carotid Artery JF - American Journal of Neuroradiology JO - Am. J. Neuroradiol. SP - 263 LP - 266 VL - 20 IS - 2 AU - Elias R. Melhem AU - Shelton D. Caruthers AU - Sami G. Faddoul AU - Richard Tello AU - Hernan Jara Y1 - 1999/02/01 UR - http://www.ajnr.org/content/20/2/263.abstract N2 - Summary: Contrast-bolus tracking in the carotid bifurcation was accomplished using an MR angiographic technique with a 3D turbo field-echo readout (TR/TE = 6/3, flip angle = 50°) modified by a keyhole scheme. Optimal visibility of the contrast bolus was achieved by digital subtraction from a reference volume. This technique reliably time-resolves the carotid arteries from the jugular veins. ER -