RF Ablation 

Functioning similarly to that of EVLT, Radiofrequency Ablation (RF Ablation) also utilizes energy to collapse varicose veins. In this case, however, the doctor will use a catheter to insert a fiber that delivers short bursts of radiofrequency energy. These bursts effectively ablate the veins and restore a more efficient flow of blood. 

Both RF ablation and EVLT are minimally-invasive, requiring only a small incision through which the doctor will insert the catheter.