Figure 3.

Simulated phantom data produced using finite element model. Images corresponding to horizontal (I¹) and vertical (I²) current injections are shown in top and bottom rows, respectively. From left to right, distributions of conductivity (A: σ), voltage (B: V), true current density (C: $J_x^t$, D: $J_y^t$, E: $J_z^t$), and magnetic flux density (F: $B_z^t$) in a central slice with a 10 mA current injection are shown.