Methods
A Medtronic 3830 lead screwed in chicken breasts delivered 50 watts RF energy in three methods: A) direct fashion (RF catheter touching the proximal end of the 3830 lead, acting as an extension of RF catheter), or B) 3830 lead as a return patch (RF delivered in the bath without contact), or C) 3830 lead as a return patch (RF delivered touching the breast surface close to the 3830 lead screwed deep in the flesh). Different power settings were also tested. Lesion surface area is reported in cm2.