Ricardo Otazo1, Daniel K. Sodickson1, Akio Yoshimoto2, Stefan Posse2,3
1Center for Biomedical Imaging, NYU School of Medicine, New York, NY, USA; 2Electrical and Computer Engineering Department, University of New Mexico, Albuquerque, NM, USA; 3Department of Neurology, University of New Mexico, Albuquerque, NM, USA
Compressed sensing and parallel imaging are combined into a single joint reconstruction to accelerate Proton Echo Planar Spectroscopic Imaging (PEPSI). The method exploits the joint sparsity in the sensitivity-encoded images to achieve higher accelerations than for coil-by-coil compressed-sensing or parallel imaging alone. We demonstrate the feasibility of simulated 4-fold acceleration for human brain PEPSI using a standard 12-channel array coil.