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Abstract #4260

Fast parameter mapping at 7T with SSFP MR Fingerprinting using 3D radial trajectories

Guido Buonincontri1,2, Pedro A Gómez1,3, Matteo Cencini1,4, Giada Fallo1,4, Laura Biagi1,5, Rolf F Schulte6, and Michela Tosetti1,5

1IMAGO7 Foundation, Pisa, Italy, 2National Institute for Nuclear Physics, Pisa, Italy, 3Technische Universitat Munchen, Munich, Germany, 4University of Pisa, Pisa, Italy, 5IRCCS Fondazione Stella Maris, Pisa, Italy, 6GE Healthcare, Munich, Germany

When using ultra-high field MRI scanners (UHF, B0>= 7T), quantitative imaging is challenging due to B0 and B1+ non-uniformities. Magnetic resonance fingerprinting (MRF) represents a great opportunity for quantitative imaging at UHF as it can estimate these effects at the same time of the parameters of interest. Here, we demonstrate in vivo at 7T a novel 3D MRF approach based on a three-dimensional radial k-space acquisition, estimating M0, T1, T2 and B1+ simultaneously in 5 minutes.

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