“…This task can be done on k-space or image space and a variety of methods is available in the QSM panel: (1) a thresholded k-space method (Shmueli et al, 2009;Wharton et al, 2010), (2) a closed-form solution with an L2-regularisation method (Bilgic et al, 2014a), (3) an iterative LSQR approach (Li et al, 2011), (4) Star-QSM (Wei et al, 2017(Wei et al, , 2016(Wei et al, , 2015, (5) MEDI+0 (J. Liu et al, 2011bLiu et al, , 2018, (6) FANSI with the weak-harmonic regularisation (Bilgic et al, 2015(Bilgic et al, , 2014bMilovic et al, 2019Milovic et al, , 2018 and 7a non-linear dipole inversion (NDI) method (Polak et al, 2020). Some algorithms utilise prior information such as magnitude images to constraint the resulting susceptibility map.…”