MR fingerprinting (MRF) studies have been performed using heavily undersampled spiral acquisitions, which constantly rotate and use uncorrelated aliasing to fit quantitative T1 and T2 maps. On top of the usual spiral sensitivity to off-resonance, the undersampling used in MRF requires a slowly varying signal evolution to “see through” the aliasing artifacts. Echo-planar imaging (EPI) would avoid these aliasing issues while still having a short measurement time due to a single-shot acquisition and parallel imaging acceleration. In this study, a single-shot EPI sequence is combined with fingerprinting techniques to obtain T1 and T2 maps similar to those from spiral fingerprinting.
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