These are MATLAB-based tools for performing 2D or 3D GRAPPA parallel imaging reconstructions, estimating GRAPPA g-factor maps, and simultaneous multi-slice unaliasing GRAPPA methods. These use and extend the same framework as the GRAPPA tutorial provided here, and should all be completely self-contained without any external dependencies. Included are:
grappa/grappa.m
: 2D or 3D regular GRAPPA reconstruction
grappa/grappa_gfactor.m
: Same as above, but performs unaliasing in image space, and can provide analytical g-factor noise amplification maps
slice-grappa/sg.m
: Slice-GRAPPA simultaneous multi-slice unaliasing
slice-grappa/spsg.m
: Split-Slice (LeakBlock) GRAPPA simultaneous multi-slice unaliasing