Abstract #1352

Acceleration of Spiral Fourier Velocity Encoded MRI Using 3D SPIRiT

Davi Marco Lyra-Leite¹,², Krishna S. Nayak¹, Joao L. A. Carvalho²

¹Department of Electrical Engineering, University of Southern California, Los Angeles, CA, United States; ²Departamento de Engenharia Eletrica, University of Brasilia, Brasilia, Distrito Federal, Brazil

We retrospectively applied 3D SPIRiT to the reconstruction of spatially and temporally-undersampled spiral Fourier velocity encoding (FVE) data, and compared this reconstruction with sum-of-squares, and with 2D image-domain SPIRiT without temporal acceleration. Using a single calibration step and 4-fold acceleration, 3D SPIRiT presented FVE time-velocity distributions with higher SER than the other approaches. This reconstruction is also twice as fast as the 2D image-domain SPIRiT reconstruction.