Improved Low-Rank Filtering of Magnetic Resonance Spectroscopic Imaging Data Corrupted by Noise and $B_0$ Field Inhomogeneity

Goal: To improve the signal-to-noise ratio (SNR) of magnetic resonance spectroscopic imaging (MRSI) data. Methods: A low-rank filtering method recently proposed for denoising MRSI data is extended by: 1) incorporating tissue boundary constraints to enable local low-rank filtering, and 2) integrating B0 field inhomogeneity correction by rank-minimization to make the low-rank model more effective. R...