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Discography This procedure is purely diagnostic. It entails the placement of needles into the disk at the spinal cord level to be studied. Under live fluoroscopy radio-opaque is then injected and the disk is studied. The Intradiscal pressure is monitored during the procedure. In most cases, a follow-up CT scan is obtained for further diagnostic information. There are two components to the diagnosis. The patient's response to the dye is the first element. The recreation of pain and the pressure at which that pain occurred in conjunction with the appearance of the disk, evidence of where the dye is seen and the follow-up CT scan make up the second part. Evidence of annular fissures or tears, the level of degeneration of the disk, diagnostic information, combined with the pain recreation, may guide further therapeutic interventions. - view animation
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