Figure 2
From: Predictability of thermo-lesions using electrodes for deep brain stimulation - an in vitro study
Schematic illustration of lesion development. a) Only when choosing two adjacent poles as active ablation electrodes homogenous coagulation ovoids formed. Ablation over distant poles resulted in two smaller single coagula with the same shape and size as monopolar coagulations. b) The origin of the resulting coagulations was situated near the two adjacent active poles of the quadripolar electrodes.