Which of the following methods can optimize lesion size during RF ablation?

Optimizing lesion size during radiofrequency (RF) ablation is crucial for effectively targeting tissue while minimizing damage to surrounding areas. Increasing RF power delivery is a valid method for achieving larger lesion sizes. When the power is increased, it enhances the energy input into the tissue, allowing the RF waves to generate higher temperatures. This increase in temperature causes faster heating and greater thermal damage to the tissue, resulting in a larger ablation zone.

Additionally, the relationship between power delivery and lesion size is significant; as power increases, the extent of coagulative necrosis increases, effectively enlarging the zone of thermal injury. This approach requires careful monitoring of temperature and impedance to avoid overheating and unintended damage to adjacent structures.

The other methods, although they may influence the procedure, do not contribute effectively to optimizing lesion size in the same way that increasing RF power does.