A CT temporal bone (HRCT ear) is a ct test of the ear. It shows middle and inner ear bone detail, cholesteatoma. Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months 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 temporal bone (HRCT ear) is a ct test of the ear. It shows middle and inner ear bone detail, cholesteatoma. Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year). What it shows: Middle and inner ear bone detail, cholesteatoma. generated by SI from cited sources · general information, not a diagnosis · consult a health professional
Middle and inner ear bone detail, cholesteatoma.
Chronic ear discharge, hearing loss before surgery.
Remove metal objects. If contrast is used you may need to fast for a few hours; tell staff about allergies, kidney disease, diabetes medicines (metformin) or pregnancy.
Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
5 minutes. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
CT
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 hrct temporal bone show?
Middle and inner ear bone detail, cholesteatoma.
Why is a hrct temporal bone done?
Chronic ear discharge, hearing loss before surgery.
How do I prepare for a hrct temporal bone?
Remove metal objects. If contrast is used you may need to fast for a few hours; tell staff about allergies, kidney disease, diabetes medicines (metformin) or pregnancy.
Does a hrct temporal bone use radiation?
Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
How long does a hrct temporal bone take?
5 minutes
Why is CT temporal bone (HRCT ear) done?
Chronic ear discharge, hearing loss before surgery.
How do I prepare for CT temporal bone (HRCT ear)?
Remove metal objects. If contrast is used you may need to fast for a few hours; tell staff about allergies, kidney disease, diabetes medicines (metformin) or pregnancy.
Is CT temporal bone (HRCT ear) safe in pregnancy?
Typical effective dose 1 to 2 mSv, similar to about 4 to 8 months of natural background radiation (about 3 mSv a year). Tell staff if you are or might be pregnant; the benefit usually outweighs the small risk, and shielding or alternatives can be considered.
SI text CC BY 4.0; RadiologyInfo.org (ACR/RSNA) and MedlinePlus linked as references only, no text copied.