Soft-tissue anatomy within the spinal canal as seen on computed tomography.

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Abstract
The CT [computed tomography] appearance of the vascular, ligamentous and neural tissues in the spinal canal was studied in 50 patients and 5 cadavers. In some patients, iodinated contrast medium was first injected into the ascending lumbar veins, nucleus pulposus or theca. Positive identification of spinal soft tissues on the CT image was made by reference to cadaver dissections. The spinal cord, nerves, root sheaths, retrovertebral plexus, epidural and basivertebral veins, posterior longitudinal ligament and ligamentum flavum, intervertebral disks and vertebral arteries can be demonstrated by CT, indicating its value in the diagnosis of disease of the cord, disk and epidural space.

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