Abstract #2989
Application of k-t FASTER for rank-constrained acceleration of in vivo FMRI data
Mark Chiew 1 , Stephen M Smith 1 , Nadine N Graedel 1 , Thomas Blumensath 2 , and Karla L Miller 1
1
FMRIB Centre, University of Oxford, Oxford,
Oxfordshire, United Kingdom,
2
IVSR,
University of Southampton, Southampton, Hampshire,
United Kingdom
In this abstract, we demonstrate the k-t FASTER method
for rank-constrained acceleration of FMRI data
acquisition on prospectively under-sampled in vivo data.
A 3D EPI acquisition scheme with 4.27x acceleration via
pseudo-random under-sampling of the kz dimension was
used to achieve whole brain sampling at 2mm isotropic
resolution with TR = 975 ms without the use of coil
sensitivity information. Results show high fidelity
reconstructions of resting state networks in comparison
to an un-accelerated 3D EPI acquisition of equal
duration.
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