Figure 4From: Occipital peripheral nerve stimulation in the management of chronic intractable occipital neuralgia in a patient with neurofibromatosis type 1: a case report Placement of two octapolar stimulating array leads over the bilateral occipital areas. Placement was carried out with ultrasound guidance and fluoroscopy. The C1-C2 interspace, which serves as a key fluoroscopic landmark for occipital peripheral nerve stimulation, and the dens are easily identifiable.Back to article page