Myelography

X-ray examination of the spinal cord, nerves, and other tissues within the spinal canal after injection of a contrast medium (a substance that is opaque to X-rays). Myelography is a type of radiographic examination that uses a contrast medium to detect pathology of the spinal cord, including the location of a spinal cord injury, cysts, and tumors. The procedure has now been replaced by CT scanning and MRI.