Diagnostic Radiology
Myelogram
A myelogram is a procedure done to show if there are any abnormalities in the spine, the spinal cord (the nerves in the spine)or the surrounding structures. It involves placing a needle into the spinal canal and injecting an iodine containing contrast agent into the sac that contains the spinal cord and nerve roots, and then taking images.
Franklin Moser, MD, Chief of Neuroradiology, leads our team of imaging physicians, nurses and technologists who specialize in these procedures.
A needle is placed in the lower back (lumbar and lumbosacral region) or
occasionally in the neck (cervical region).The area for needle placement
is localized using imaging guidance. The radiologist will administer local
anesthesia. Since the needle tip is in a location near the nerve roots, the
patient may briefly experience symptoms such as pain or an electric shock
sensation down the leg; if this happens, the needle position will be adjust-
ed. A small amount of cerebrospinal fluid is removed and sent to the labor-
atory for analysis. Contrast is injected, multiple x-ray images are obtained,
and the needle is removed. A series of x-ray pictures are obtained.
A CT scan is routinely performed after the myelogram to provide additional inform-
ation. Much of the procedure is performed with the patient lying prone (face
down). The entire procedure from start to finish lasts approximately one hour;
the needle is removed at the very beginning of the procedure. The patient will
be awake during the procedure and can ask questions.
