Which procedure uses high-energy radio waves to heat and destroy abnormal cells or tissue?

• A. Radiofrequency ablation
• B. Cryoablation
• C. Hyperthermic therapy
• D. Laser ablation

Answer: (A)

High-energy radio waves used to heat and destroy abnormal cells describe radiofrequency ablation. In this approach, a probe is placed near or inside the target tissue and delivers radiofrequency energy. The alternating current causes ions in the tissue to oscillate, turning the energy into heat (resistive heating). The heat coagulates proteins and destroys cells, creating a controlled zone of tissue death while aiming to spare surrounding structures. This technique is commonly used in procedures like liver tumor ablation and certain heart rhythm treatments, and it’s typically performed under imaging guidance to ensure precision. It differs from cryoablation, which freezes tissue; laser ablation, which uses light energy; and hyperthermic therapy, which is a broader heating approach not limited to radiofrequency.