What is the most common energy source used in radiofrequency ablation (RFA)?

The most common energy source used in radiofrequency ablation (RFA) is radiofrequency energy. This method utilizes high-frequency electrical currents to generate heat, which effectively destroys targeted tissue through thermal coagulation. In the procedure, a catheter with an electrode is placed directly at the target site, allowing for precise application of radiofrequency energy. The controlled heating leads to the denaturation of proteins and cellular structures, ultimately resulting in the desired ablation of the abnormal tissue while minimizing damage to surrounding areas.

Other energy sources, such as infrared, cryogenic, and ultrasound, are used in various medical procedures, but they do not provide the same level of precision and effectiveness specifically for RFA as radiofrequency energy does. Radiofrequency energy's ability to be accurately controlled and its established safety profile make it the preferred choice in these ablation procedures.