Myelography Test
Myelography is an imaging test that checks for problems in your spinal canal, such as herniated disks, tumors, or spinal stenosis. It uses contrast dye to make the spinal cord and nerves show up clearly on an x-ray or CT scan.
What this test measures
Myelography measures the size, position, and shape of your spinal canal and its contents, including the spinal cord, nerve roots, and surrounding structures.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Frequently asked questions
What is myelography?
Myelography, also called a myelogram, is an imaging test that checks for problems in your spinal canal.
Why is contrast dye used?
Contrast dye is injected into the spinal canal to make the spinal cord, nerves, and other tissues show up more clearly on an x-ray or CT scan.
What conditions can myelography detect?
It can detect herniated disks, tumors, spinal stenosis, infections, and arachnoiditis.
What does a normal result mean?
A normal result means your spinal canal and structures were normal in size, position, and shape.
What does an abnormal result mean?
An abnormal result may mean you have a herniated disk, spinal stenosis, tumor, nerve injury, bone spurs, or arachnoiditis.
Related lab tests
Sources
- MedlinePlus: Myelography — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.