Michael Salerno1, Christopher M. Kramer2,
Craig H. Meyer3
1Department of Medicine, Cardiology,
University of Virginia, Charlottesville, VA, United States; 2Department
of Radiology, University of Virginia, Charlottesville, VA; 3Biomedical
Engineering, University of Virginia, Charlottesville, VA
Variable
density (VD) spiral trajectories are an efficient method for data acquisition
and may be advantageous for first pass myocardial perfusion imaging. By only partially correcting the variable
density, k-space is weighted by a smooth function which reduces Gibbs
Ringing. This strategy is employed to
further reduce dark-rim artifacts for spiral myocardial perfusion imaging.