In Vivo Quantitative Susceptibility Mapping (QSM) in Alzheimer's Disease
Figure 1
Schematic depiction of the projection onto dipole fields (PDF) pipeline implementation. W: weighting matrix; : (measured) magnetic induction;
: exobrain mask;
: Fourier operator; D: magnetic dipole kernel;
: dipole operator;
: (estimated) exobrain dipole distribution;
: (minimised) conjugate gradient residual matrix;
: (estimated) background field;
: (estimated) foreground field.