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Abstract #1348

A Comparison of Optimised Single-Shot MR Fingerprinting Pulse Sequence Designs.

Jack Allen1, James Kennedy2, and Peter Jezzard1

1FMRIB, Nuffield Department of Clinical Neuroscience, University of Oxford, Oxford, United Kingdom, 2Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom

The parameter mapping accuracy of MR Fingerprinting (MRF) relies on specific signal patterns for each set of parameters. Choice of sequence design and acquisition parameters are two aspects that affect this. We optimised the TR and Flip Angle (FA) of a selection of simulated single-shot MRF designs, based on Inversion-Recovery Gradient Echo (IR-GRE), GRE, Spin Echo (SE) and IR-SE sequences. We compared the parameter assignment accuracy of each optimised design. Our results suggest that GRE-based sequences should be used for single-shot MRF.

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