Variable Density Compressed Sensing Single Shot Fast Spin Echo
Valentina Taviani1, Daniel V. Litwiller2, Jonathan I. Tamir3, Andreas M. Loening1, Brian A. Hargreaves1, and Shreyas S. Vasanawala1
1Stanford University, Stanford, CA, United States, 2Global MR Applications and Workflow, GE Healthcare, New York, NY, United States, 3University of California Berkeley, Berkeley, CA, United States
Variable
density (VD) sampling was implemented into an extended echo train single shot
fast spin echo (SSFSE) pulse sequence. Compressed sensing (CS) reconstuction
was used. With respect to regular undersampling and ARC (Autocalibrated
Reconstruction for Cartesian imaging), VD CS SSFSE allows higher acceleration
factors, which translates in increased flexibility in the choice of echo times for full-Fourier imaging (shorter minimum
TEs) and faster acquisitions (shorter breath-holds).
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