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Offset Sampling Improves Deep Learning based Accelerated MRI Reconstructions by Exploiting Symmetry

2 Dec 2019arXiv:1912.01101archive 2025-07-28

Aaron Defazio

Deep learning approaches to accelerated MRI take a matrix of sampled Fourier-space lines as input and produce a spatial image as output. In this work we show that by careful choice of the offset used in the sampling procedure, the symmetries in k-space can be better exploited, producing higher quality reconstructions than given by standard equally-spaced samples or randomized samples motivated by compressed sensing.

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Kuga23/DL-fastMRI mentioned on GitHubpytorch report
facebookresearch/fastMRI mentioned on GitHubpytorch report

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compressed sensing

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