High-Speed Volumetric Proton Echo Planar Spectroscopic Imaging (PEPSI) with RF Sensitivity Encoding Along Two Spatial Dimensions
Otazo R, Jordon R, Posse S
The MIND Institute, University of New Mexico
Proton Echo Planar Spectroscopic Imaging (PEPSI) offers fast spatial-spectral encoding, but 3D spatial encoding is still time consuming. We have previously demonstrated combination of PEPSI with SENSE acceleration along one spatial dimension. Here we present the combination of PEPSI with SENSE acceleration along two spatial dimensions to further accelerate 3D spectroscopic imaging. Up to 8-fold acceleration was feasible for a 32x32x16 spatial matrix using an 8-channel array coil.