Abstract #0618

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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