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Radiofrequency or microwave ablation

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).

सामान्य स्वास्थ्य जानकारी — यो निदान होइन। आपत्कालमा १०२ मा फोन गर्नुहोस्। सधैं योग्य स्वास्थ्यकर्मीसँग सल्लाह लिनुहोस्।

What it shows

Destroys small tumours with heat through a needle.

Why it is done

Small liver cancers, thyroid nodules.

Preparation

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.

Radiation & safety

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 it takes

1 to 2 hours. General information, not a diagnosis. Results must be interpreted by a qualified health worker.

Sample type

Interventional

नतिजा व्याख्या गर्न डाक्टरलाई देखाउनुहोस् — एउटै परीक्षणले निदान गर्दैन।

यो कहाँ गर्न सकिन्छ

तपाईंनजिकको हेरचाह

नजिकका सुविधा देखाउन तपाईंको स्थान एक पटक प्रयोग गर्छ। केही सुरक्षित गरिँदैन।

सामान्य प्रश्न

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

Radiofrequency or microwave ablation किन गरिन्छ?
Small liver cancers, thyroid nodules.

Radiofrequency or microwave ablation का लागि कसरी तयारी गर्ने?
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.

Radiofrequency or microwave ablation गर्भावस्थामा सुरक्षित छ?
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.

स्रोत: SI health summary (own words); decoder imaging pack; RadiologyInfo.org and MedlinePlus as references only

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