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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: IEEE Trans Med Imaging. 2016 Mar 22;35(9):2040–2050. doi: 10.1109/TMI.2016.2544958

Fig. 4. In vivo.

Fig. 4

human brain data and comparisons on their corresponding a priori weighting matrices of (a) magnitude images, (b) field shifts, (c) initial QSMs in M-step, and (d) COSMOS QSMs (in ppm). Weighting matrices extracted from the initial QSM is almost consistent to the COSMOS, but there are obvious structural differences in magnitude and field maps as pointed by arrows. (e-f) the fidelity mask R2 to deal with the effect of unreliable phase data.