Radiofrequency ablation (RFA) is a procedure that uses radio waves to destroy damaged or abnormal tissue. It may be used to close a damaged vein to force healthy veins to take over its function. It may be used to destroy cancerous tumors in the liver or lungs.

When RFA is used to treat tumors, a hollow needle is guided directly into the tumor using fluoroscopy (live x-ray) for guidance to ensure precise placement. Once the needle is in place, a set of tiny metal wires is extended and radiofrequency energy is applied.

When RFA is used to treat damaged or malformed blood vessels, the tiny metal wires are transported to the correct location with a catheter that travels through your blood vessels.