A Radiofrequency or microwave ablation is a interventional test of the liver, kidney, thyroid. It shows destroys small tumours with heat through a needle. Typical effective dose 2 to 10 (CT-guided) or none (ultrasound) mSv, similar to up to about 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 Radiofrequency or microwave ablation is a interventional test of the liver, kidney, thyroid. It shows destroys small tumours with heat through a needle. Typical effective dose 2 to 10 (CT-guided) or none (ultrasound) mSv, similar to up to about 3 years of natural background radiation (about 3 mSv a year). What it shows: Destroys small tumours with heat through a needle. generated by SI from cited sources · general information, not a diagnosis · consult a health professional
Destroys small tumours with heat through a needle.
Small liver cancers, thyroid nodules.
Blood tests for clotting are usually needed; blood thinners may need to be paused only on your doctor's advice. Fasting for a few hours is common.
Typical effective dose 2 to 10 (CT-guided) or none (ultrasound) mSv, similar to up to about 3 years 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.
1 to 2 hours. General information, not a diagnosis. Results must be interpreted by a qualified health worker.
Interventional
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 rfa show?
Destroys small tumours with heat through a needle.
Why is a rfa done?
Small liver cancers, thyroid nodules.
How do I prepare for a rfa?
Blood tests for clotting are usually needed; blood thinners may need to be paused only on your doctor's advice. Fasting for a few hours is common.
Does a rfa use radiation?
Typical effective dose 2 to 10 (CT-guided) or none (ultrasound) mSv, similar to up to about 3 years 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 rfa take?
1 to 2 hours
Why is Radiofrequency or microwave ablation done?
Small liver cancers, thyroid nodules.
How do I prepare for Radiofrequency or microwave ablation?
Blood tests for clotting are usually needed; blood thinners may need to be paused only on your doctor's advice. Fasting for a few hours is common.
Is Radiofrequency or microwave ablation safe in pregnancy?
Typical effective dose 2 to 10 (CT-guided) or none (ultrasound) mSv, similar to up to about 3 years 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.