Myelogram

Myelogram is a diagnostic imaging procedure that uses a contrast dye and X-rays or computed tomography (CT) to visualize the spinal cord, spinal canal, and nerve roots. It is a valuable method for detecting diseases and injuries of the spinal cord, including herniated discs, tumors, or spinal stenosis.

Procedure

A myelogram is performed by a radiologist or a neuroradiologist. The patient is positioned on a tilting x-ray table, and a local anesthetic is applied to the lumbar area. A needle is then inserted into the spinal canal, and a contrast dye is injected. The table is tilted to allow the dye to flow through the spinal canal, and X-rays or CT scans are taken to visualize the flow of the dye and identify any abnormalities.

Uses

Myelograms are used to diagnose a variety of spinal conditions. These include:

• Spinal stenosis: A narrowing of the spinal canal that can cause pain, numbness, or muscle weakness.
• Herniated disc: A condition in which the soft inner part of an intervertebral disc protrudes through the outer layer, potentially pressing on nerves and causing pain.
• Spinal tumors: Abnormal growths in the spinal canal or on the spinal cord.
• Spinal infections: Infections that can affect the spinal cord, intervertebral discs, or the surrounding bone and soft tissues.
• Spinal cord injuries: Damage to the spinal cord that can cause loss of sensation and motor function.

Risks

While myelograms are generally safe procedures, they do carry some risks. These can include:

• Allergic reaction to the contrast dye
• Infection at the injection site
• Bleeding into the spinal canal
• Headaches caused by leakage of spinal fluid
• Nerve damage due to trauma from the needle

Alternatives

While myelograms provide valuable information, other imaging techniques may be used as alternatives or in conjunction with a myelogram. These include:

• Magnetic Resonance Imaging (MRI): An imaging technique that uses a magnetic field and radio waves to create detailed images of the body.
• Computed Tomography (CT) scan: An imaging technique that uses a series of X-ray images to create cross-sectional images of the body.

Myelogram Resources
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