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Radiology, Vol 206, 555-559, Copyright © 1998 by Radiological Society of North America

ARTICLES

Carotid artery bifurcation: multiple-flip-angle, three-dimensional, time-of-flight MR angiographic technique

SH Faro, FB Mohamed, CY Chen, HV Ortega and S Vinitski
Department of Radiological Sciences, Allegheny University Hospitals- Medical College of Pennsylvania, Philadelphia 19129, USA.

Multiple-flip-angle, three-dimensional, time-of-flight magnetic resonance (MR) angiography was performed in vitro and in vivo in the carotid artery bifurcation. Composite MR angiographic images were created from multiple data sets. Compared with images obtained with a low (20 degrees) flip angle, composite images obtained with flip angles of 20 degrees and 60 degrees demonstrated improved image quality and statistically significant improvement in signal-to-noise ratio (P < .05).




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