Meeting Banner
Abstract #4412

Gradient & Frequency Modulated Excitation for a Tailored Spatial Trajectory with Two-Dimensional Time Encoding for Fourier-Free Imaging

Angela Lynn Styczynski Snyder1, Curt Corum2, Steen Moeller2, Nathan Powell3, Michael Garwood2

1Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States; 2Department of Radiology, University of Minnesota; 3Department of Neuroscience, University of Minnesota

A frequency-swept RF pulse and modulated gradients can be used to move a resonance region through space to generate sequential excitation and subsequent echo formation with time-dependence, which allows image formation without use of the Fourier transform. This two-dimensional time encoding (2DTE) has the unique and important property that each region in space can be treated independently, which is potentially of great benefit for solving problems that are inherently spatial in nature, such as compensating for B0 and B1 inhomogeneities, which is of increasing interest for higher field strengths.