Fast and flexible 3D-EPI fat navigators for high-resolution brain imaging at 7 Tesla
Pieter F Buur1, Wietske van der Zwaag1, José P Marques2, and Daniel Gallichan3
1Spinoza Centre for Neuroimaging, Amsterdam, Netherlands, 2Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen, Nijmegen, Netherlands, 3Centre d'Imagerie BioMédicale (CIBM), EPFL Lausanne, Lausanne, Switzerland
Motion
correction using interleaved fat navigators is a promising approach for
high-resolution brain imaging at 7 Tesla. We have implemented a 3D-EPI fat
navigator to reduce acquisition time and thereby minimize overhead in sequences
with little or no dead time. The efficacy of motion-induced artefact removal
using the fat navigators is demonstrated for 0.6 mm isotropic inversion-prepared
(MPRAGE) and 0.5 mm isotropic non-prepared 3D TFE (GRE) protocols.
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