Radiofrequency element | Electrophysiological principle |
Distance from active tip | Heat generation=1/(radius from active tip)220
|
RFA current intensity* | Heat generation=(current density)14
|
Duration of RF application | The duration of heating influences lesion size. |
*Tip size as determined by the gauge of the needle and the length of the active tip influences RF current intensity.
RF, radiofrequency; RFA, radiofrequency ablation