Percutaneous lateral cervical cordotomy: target localization with water-soluble contrast medium.
Water-soluble intrathecal contrast material was used for radiographic identification of the cord target in 13 patients undergoing percutaneous lateral cervical cordotomy. Adequate visualization of the dentate ligament, considered essential for successful placement of the electrode, was achieved in seven cases. In the remaining six patients, four with suboptimal definition and two with nonvisualization of the ligament, an additional injection of contrast medium using a modified coaxial needle system outlined the entire thickness of the cervical cord. This technique improved needle-tip positioning in relation to the cord and resulted in successful surgery in all six patients.
Krol
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Department of Radiology (Service of Neuroradiology), Memorial Sloan-Kettering Cancer Center, New York, New York.
Arbit
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E
D003287:Contrast Media; D002818:Cordotomy / Q000379:methods*; D062109:Dermatologic Surgical Procedures; D006801:Humans; D008279:Magnetic Resonance Imaging; D009333:Neck; D010148:Intractable Pain / Q000601:surgery; D012995:Solubility; D013116:Spinal Cord / Q000473:pathology / Q000601:surgery*; D014867:Water
D003287:Contrast Media; D014867:Water