A CT myelogram is a fluoroscopy test of the spine. It shows nerve root and cord compression when MRI is not possible. Typical effective dose 3 to 10 mSv, similar to about 1 to 3 years of natural background radiation (about 3 mSv a year).
General health information, not a diagnosis. In an emergency, call 102. Always consult a qualified health professional.
A CT myelogram is a fluoroscopy test used to visualize the spine, particularly when an MRI is not available. It highlights nerve root and cord compression. The typical effective dose is 3 to 10 mSv, similar to about 1 to 3 years of natural background radiation. It is commonly used for pacemaker patients needing spine imaging. Preparation involves fasting or bowel cleansing, and staff should be informed if you are or might be pregnant. The test takes 1 to 2 hours, and results must be interpreted by a qualified health worker. Abdominal and pelvic exposure is avoided in pregnancy unless essential.
Nerve root and cord compression when MRI is not possible.
Pacemaker patients needing spine imaging.
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.
Typical effective dose 3 to 10 mSv, similar to about 1 to 3 years of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; abdominal and pelvic exposure is avoided in pregnancy unless essential.
1 to 2 hours. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
Fluoroscopy
Consult a doctor to interpret results — a single test does not make a diagnosis.
Uses your location once to list the nearest facilities. Nothing is stored.
What does a myelogram show?
Nerve root and cord compression when MRI is not possible.
Why is a myelogram done?
Pacemaker patients needing spine imaging.
How do I prepare for a myelogram?
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.
Does a myelogram use radiation?
Typical effective dose 3 to 10 mSv, similar to about 1 to 3 years of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; abdominal and pelvic exposure is avoided in pregnancy unless essential.
How long does a myelogram take?
1 to 2 hours
Why is CT myelogram done?
Pacemaker patients needing spine imaging.
How do I prepare for CT myelogram?
Preparation depends on the study (fasting or bowel preparation). Tell staff if pregnant.
Is CT myelogram safe in pregnancy?
Typical effective dose 3 to 10 mSv, similar to about 1 to 3 years of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; abdominal and pelvic exposure is avoided in pregnancy unless essential.
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