Figure legend
Figure 1. Intraoperative computer tomography (CT) scans fused with
pre-operative T2-weighted magnetic resonance imaging (MRI) scans,
displaying the electrode locations. The colored circles mark the
commissures and their mid-point. A: Electrode location as seen at the
AC-PC level in Patient 1. B: Electrode location as seen 3 mm deeper in
Patient 2.