GRAPPA-based simultaneous multislice reconstruction using concentric ring k-space
Alan Chu 1 and Douglas C. Noll 1
Biomedical Engineering, University of
Michigan, Ann Arbor, MI, United States
A GRAPPA-based reconstruction method for non-Cartesian
simultaneous multislice (SMS) imaging is presented. The
method is non-iterative, decreasing image reconstruction
time relative to iterative SENSE-based methods for
non-Cartesian SMS. A concentric ring k-space trajectory
is used, along with z-gradient blipping, to enhance the
accuracy of GRAPPA weight calibration and subsequent
slice separation. Preliminary results suggest good
potential for use in fMRI or DTI experiments.
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