Effect of Power and Frequency on Microwave Ablation on Lungs

Abstract

Invasive thermal therapies have proved their significance as a better substitute to eradicate tumors of various types especially patients with surgical intolerance. The primacy of operating Microwave Ablation (MWA) over other thermal therapies is due to the prospect of the treatment of >3cm dia tumors which is a major setback in the RFA. Therefore, MWA is favored as a better thermal therapy for treating lung, breast, liver, and kidney comparable to other treatment techniques. In this respect, the current study is made to inspect the factors like Applied Power & Frequency on the dimension of the Ablation zone achieved post Microwave Thermal Ablation. The numerical approach with the Finite Element Method-based analysis has been accounted for to obtain the impact of input factors on the size of the Ablation Zone. For this study Lungs has been considered and results are simulated for the ablation zone impacted by power and frequency. It has been observed that as the Power Applied and Frequency are increased, the Dimension of the Ablation Zone grows eventually. Both the input factors have a positive impact on the response proving the possibility of treating larger tumors with correct input settings. The results derived from the entire study would be highly useful for the radiologist and other medical departments to gain a good understanding of the role of input factors while providing initial information in the pre-treatment stage.