Figure 3.

Influence of parallel MER trajectories inserted intraoperatively. EF distribution simulated in a homogeneous medium depicted with isosurfaces and isocontours of 0.2 V/mm. Isocontours obtained at perpendicular planes placed at the target and 12.5 mm above it (red lines shown in A) for stimulation using the central lead at (A) 1 mA and (B) 3 mA. (C) Superposition of the isosurfaces and the isocontours for the three cases at 3 mA. Single lead (dark blue), two leads (cyan), and three leads (yellow). Non active contacts of the posterior and medial leads were set to floating potential. Numbers below the leads indicate the EF volume covered by the 0.2 V/mm isosurface.