Stefano Mandija1, Alessandro Sbrizzi1, Astrid L.H.M.W. van Lier1, Peter R. Luijten1, and Cornelis A.T. van den Berg1
EPT conductivity reconstruction is affected by difficulties to reliably
calculate spatial derivatives on voxelized MRI data. Here, we explore the
impact of several numerical approximations. In particular: the different size
of finite-difference kernels and the k-space truncation (always present in MR
images). We also explore a Fourier-domain alternative, which does not require
finite-difference approximation kernels.