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Abstract #3385

3D Balanced-EPI Magnetic Resonance Fingerprinting at 6.5 mT

Mathieu Sarracanie 1,2 , Ouri Cohen 1 , and Matthew S Rosen 1,2

1 MGH/A.A. Martinos Center for Biomedical Imaging, Charlestown, MA, United States, 2 Department of Physics, Harvard University, Cambridge, MA, United States

2D MR Fingerprinting has recently been shown at low magnetic field. Here, we demonstrate MRF in 3D at 6.5 mT, using an optimized set of 15 flip angles and repetition times (FA/TR), in a Cartesian acquisition of k-space with a new hybrid b-SSFP-EPI sequence. We measure quantitative parameters in 3D, and generate several image contrasts in a single acquisition (proton density, T1, T2) in less than 30 minutes. The combination of 3D MRF with low field MRI scanners has great potential to provide clinically relevant contrast with portable low cost MR scanners.

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