Medicare Supplement plans (Medigap coverage) overview. Medicare Supplement (also known as MedSup or Medigap) coverage, is health insurance sold by private insurance companies to fill the âgapsâ in Medicare Part A and Part B coverage.
Radiofrequency ablation (RFA) is a minimally invasive procedure that destroys cancerous tumors. Pulses of radiofrequency energy are sent through a catheter (a long, thin tube) to heat and destroy diseased tissue. Currently, RFA is a standard treatment for patients with inoperable liver tumors.
Radiofrequency ablation uses a special type of needle to apply radio waves to a painful nerve, in turn âstunningâ it and relieving the pain. The procedure is referred to by many names: RF, RFA, rhizotomy, and neurotomy. There are several different types of Radiofrequency Ablation: 1  Thermal or Conventional RFA: A radiofrequency current is created which causes energy to pool in the tissue.