Use of three-dimensional MR angiography for tracking a contrast bolus in the carotid artery.
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 degrees) 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.
Melhem
E R
ER
Department of Radiology, The Johns Hopkins Medical Institution, Baltimore, MD 21287, USA.
Caruthers
S D
SD
Faddoul
S G
SG
Tello
R
R
Jara
H
H
D000328:Adult; D000368:Aged; D002339:Carotid Arteries / Q000033:anatomy & histology* / Q000473:pathology; D003287:Contrast Media; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D018810:Magnetic Resonance Angiography / Q000379:methods*; D008297:Male; D013382:Subtraction Technique
D003287:Contrast Media