A myelogram (or myelography) is a medical imaging technique that takes detailed pictures of the spinal cord using either X-rays or CT scans. The patient receives contrast dye injected into the spinal column first to allow the radiologist to see all the spinal structures.
A myelogram is used to aid in the diagnosis of spinal issues like herniated discs, brain or spinal cord tumors, bone spurs or other issues affecting the spine.