Is a myelogram an MRI?
Is a myelogram an MRI?
Myelograms are usually accompanied by CT/CAT scans, which often have higher resolution than MRI. That means the images show more detail, much like a higher resolution digital camera produces sharper pictures. Consequently, more subtle signs of disease may be identified.
What do you need to know about a myelogram?
A myelogram is a diagnostic imaging test generally done by a radiologist. It uses a contrast dye and X-rays or computed tomography (CT) to look for problems in the spinal canal. Problems can develop in the spinal cord, nerve roots, and other tissues. This test is also called myelography. The contrast dye is injected…
How long does a CT scan take after a myelogram?
In many instances, a CT scan of the spine is performed immediately after a myelogram, while the contrast material is still in the spinal canal. This helps outline internal structures more clearly. A myelogram takes approximately 30 to 60 minutes.
How is contrast used in a myelogram procedure?
The contrast dye is injected into the spinal column before the procedure. The contrast dye appears on an X-ray screen allowing the radiologist to see the spinal cord, subarachnoid space, and other nearby structures more clearly than with standard X-rays of the spine. The radiologist will also use a CT scan when doing a myelogram.
What are the rare side effects of myelography?
Severe reactions, such as heart or respiratory failure, occur very infrequently, and require emergency medical treatment. Rare complications of myelography include injury to the nerve roots from the needle or from bleeding into the spaces around the roots.
A myelogram is a diagnostic imaging test generally done by a radiologist. It uses a contrast dye and X-rays or computed tomography (CT) to look for problems in the spinal canal. Problems can develop in the spinal cord, nerve roots, and other tissues. This test is also called myelography. The contrast dye is injected…
What are the risks of having a myelogram MRI?
The most common risk is a headache caused by changes in spinal fluid pressure. When this occurs, patients get a very bad headache, which is treated with bed rest and rarely, injection of blood at the injection site. Another possible complication is allergic reaction. This typically occurs because the contrast dye contains iodine.
Which is better a myelogram or a CT scan?
CT scans also show bony spur growth, calcification, and general bone anatomy much better. This is important in evaluating bone density and facet joint anatomy, as well as planning surgical procedures. Since a myelogram uses dye to fill the actual nerve root sleeves, the surgeon can better see and assess the degree of nerve root compression.
Is it safe for a pregnant woman to have a myelogram?
Likewise, the dye can increase the risk of seizures. Women who are pregnant should not get a myelogram since it exposes the baby to radiation. MRIs do not use radiation, so they are safe for use in pregnancy. Other rare complications of myelogram include injuring the nerve root with the needle and bleeding.