(dis-KOG-rah-fee) — Technically, the injection of a reactive dye into the disc nucleus and visualization of the disc interior by x-ray. See provocation discography.
Discography involves the injection of dye into the nucleus of an intervertebral disc. During the injection, the physician performing the procedure asks the patient if the injection generates pain similar to his/her “usual pain.†Discographic images are generated from plain radiographs and computed tomography (CT) scanning.
The injection of a water-soluble imaging material directly into the nucleus pulposus of a disc to assess the extent of disc damage and characterize the pain response.