PT  - JOURNAL ARTICLE
AU  - Elias R. Melhem
AU  - Jean-Micheal Serfaty
AU  - Lisa Jones
AU  - Ryuta Itoh
AU  - Brian S. Kuszyk
AU  - Jean-Baptiste Martin
AU  - Philippe Gailloud
AU  - Kieran P.J. Murphy
AU  - Daniel A. Rufenacht
TI  - Contrast-enhanced MR Angiography: The Effects of k-Space Truncation on Luminal Representation in a Carotid Artery Phantom Model
DP  - 2000 Jun 01
TA  - American Journal of Neuroradiology
PG  - 1028--1031
VI  - 21
IP  - 6
4099  - http://www.ajnr.org/content/21/6/1028.short
4100  - http://www.ajnr.org/content/21/6/1028.full
SO  - Am. J. Neuroradiol.2000 Jun 01; 21
AB  - Summary: Using carotid bifurcation phantom models with different degrees of stenoses, we evaluated the accuracy of vessel lumen representation on MR images obtained from the inverse Fourier transform of different k-space percentages. Our results show that the lower thresholds of truncated k-space sampling are dictated by the severity of luminal narrowing. The defined thresholds may help improve efficiency of 3D MR imaging of the carotid arteries while maintaining adequate luminal representation.