RT Journal Article
SR Electronic
T1 Feathering: Vertebral Artery Pseudostenosis with Elliptical Centric Contrast-Enhanced MR Angiography
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 850
OP 852
VO 27
IS 4
A1 Huston, J.
A1 Bernstein, M.A.
A1 Riederer, S.J.
YR 2006
UL http://www.ajnr.org/content/27/4/850.abstract
AB SUMMARY: Elliptical centric contrast-enhanced MR angiography of the cervical vasculature is a well-established technique that in many practices has replaced conventional angiography for several clinical indications, including atherosclerotic disease and dissections. Occasionally blurring or loss of signal intensity occurs in the vertebral arteries, especially in young patients with rapid circulation times. This ringing artifact, which we termed “feathering,” results from rapidly changing signal intensity in small vascular structures during the sampling of the center of k-space.