When contrast dye is injected into the spinal column to help with X-ray or CT scan imaging, it's called a myelogram.

This process provides much clearer answers about problems in the spinal column. In this procedure, we may remove a bit of spinal column fluid to make room for the contrast dye. Once the dye has had a chance to circulate, we'll use it to better evaluate things like herniated discs, spinal stenosis, bone spurs or arthritic discs.