Structure Prior Effects in Bayesian Approaches of Quantitative Susceptibility Mapping

Figure 1

Regularization effects on QSM reconstructions demonstrated in a noisy Zubal lesion phantom: (a) magnitude and local field, without (top) or with structure prior   (bottom). The structural consistency reduced artifacts in susceptibility reconstructions for GL2, TV, and MEDI. This is supported with the quantitative measurements of (b) the relative errors and (c) regression slopes (all with ). The image quality of MEDI is also superior to MGL2 and MTV.

(a)

(b)

(c)