title: Percutaneous trigeminal tractotomy. Variations in delineation of the obex using emulsified Pantopaque.
mesh_terms: D001933:Brain Stem / Q000000981:diagnostic imaging; D014695:Cerebral Ventriculography; D003287:Contrast Media; D004655:Emulsions; D005145:Face; D005227:Fatty Acids; D006801:Humans; D007459:Iodized Oil; D007462:Iodobenzenes; D009434:Neural Pathways; D010148:Intractable Pain / Q000628:therapy; D014276:Trigeminal Nerve / Q000601:surgery*
chemical_list: D003287:Contrast Media; D004655:Emulsions; D005227:Fatty Acids; D007462:Iodobenzenes; D007459:Iodized Oil