Abstract #4260

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

Guido Buonincontri^1,2, Pedro A Gómez^1,3, Matteo Cencini^1,4, Giada Fallo^1,4, Laura Biagi^1,5, Rolf F Schulte⁶, and Michela Tosetti^1,5

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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