Fig. 1

Schemes and mechanisms of RF ablation, MW ablation, and the proposed magnetic ablation method. The upper part of this figure displays the schematic of the adopted system. The middle part illustrates the process of tissue classification by temperature. In RF and MW ablation, the high-temperature active ablation zone and low-temperature thermal conduction zones are located around the electrode and antenna, respectively. By contrast, in the proposed magnetic ablation method, only the high- and low-temperature thermal conduction zones are located near the high-temperature active ablation zone of the injected gallium. The bottom part of this figure illustrates the mechanism in the high-temperature active ablation zone. In RF and MW ablation, friction heat is generated through ion movement and water molecule rotation. In magnetic ablation, surface resistance heat is generated from the high-speed flow of eddy current in the superficial region of the conductive materials