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Abstract #2186

Iterative denoising of undersampled 3D MRF with exact line search and spatial regularization

Constantin Slioussarenko1 and Benjamin Marty1
1NMR Laboratory, Neuromuscular Investigation Center, Institute of Myology, Paris, France

Synopsis

Keywords: MR Fingerprinting/Synthetic MR, Sparse & Low-Rank ModelsWe propose an iterative algorithm to remove remaining artefacts of Magnetic Resonance Fingerprinting maps, using projected gradient descent with exact line search and spatial regularization. We use this framework to denoise 3D MRF T1-FF acquisitions undersampled in the partition direction and show that this allows to reduce undersampling artefacts for the T1H2O and FF maps after a few iterations.

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