Fig. 1From: Spinal cord stimulation in chronic pain: evidence and theory for mechanisms of actionLead Placement in P-SCS and PF-SCS: Dorsal column stimulation with traditional P-SCS, B-SCS and HF-SCS are anatomically placed over the dorsal columns. DRG-S is placed within the targeted foramina overlying the dorsal root ganglion. In all cases SCS can result in orthodromic activation or antidromic activation. Acronyms: IPG (Implantable Pulse Generator)Back to article page