Figure 1: Upper panel: Rendering of PVS in a patient with ICB during DBS-electrode-implantation (PVS-Index=0.054). Lower panel: Bar graph plotting the frequency of the PVS-Index across all patients with suitable MRI. PVS-Index values of 8 patients with ICB are marked red. MRI data of two patients with ICB were not suitable (MRI not feasible due to cochlea implant in one patient; multiple sclerosis in another patient).