Fig. 8.
Results from the leave-one-out optimization based on the 5-slice EPI data. Conductivity optimization was performed five times for four subjects with the RL (blue), AP (orange), and both (green) electrode montages with one subject left out. The mean and standard error of the obtained conductivities from the five optimizations are shown above. The black dashed lines are the upper and lower conductivity limits while the red line indicates the initial conductivity value. The difference between measurement and simulations was calculated for the left-out subject (bottom right plot). The differences were calculated for the RL, AP, and both electrode montages, respectively. For each electrode montage, the difference was calculated with literature conductivities (lit), conductivities optimized for one-electrode montage (OPTRLor OPTAP), and for both electrode montages combined (OPTComb).