AJDRAJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology, Vol 19, Issue 4 688-690, Copyright © 1998 by American Society of Neuroradiology

ARTICLES

Three-dimensional contrast-enhanced MR angiography of the extracranial carotid arteries: two techniques

RA Levy and JH Maki
Department of Radiology, University of Michigan Hospitals, Ann Arbor, USA.

Two methods of contrast-enhanced dynamic 3-D MR angiography of the head and neck are demonstrated. In the first, arterial and arteriovenous phases are temporally resolved by timing contrast injection such that maximum arteriovenous signal intensity difference is matched to acquisition of central k-space. A second, faster sequence allows for temporal resolution of arterial, early arteriovenous, late arteriovenous, and washout arteriovenous phases without a need for precise injection timing.




Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X