Phase filtering is a very important step in obtaining a good susceptibility tensor. We compare and illustrate the effects of different phase processing methods on the quality of susceptibility tensor reconstruction with different numbers of orientations. In general, tensor reconstructed from variations of the SHARP phase filtering methods show the most robustness against the large field inhomogeneity and produce tensor elements that are spatially and anatomically more consistent. Compared to the original STI reconstruction, asymmetric STI reduces some of the variations induced by phase filtering methods.
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