Novel T-ring-based probes for thermal ablation of tumors in different organs.

Abstract

Thermal ablation has arisen as a crucial procedure for managing several solid tumors, presenting a minimally invasive choice that induces tumor mortification through localized heating. However, tumors may locate in different anatomical areas/organs, including the liver, kidney, lung, and breast. Generally, thermal ablation techniques use specific probe design that matches the tumor site and size, highlighting a noteworthy research gap in the implementation of an effective versatile probe that ablates tumors of various organs. This inspired this study to design an innovative thermal ablation T-Ring-based probes, namely the single slot with 3 T-rings (3TSS) probe, and single slot sleeved with 10 T-rings (10TSSS) probe, that enthused by the traditional single air slot probe, and the double slot sleeved probe, respectively. The proposed probes can be used at different sites in the human body, namely liver, breast, kidney, and lung. The proposed probes optimize the dissipated power consumption during the ablation process. The optimal probe's impedance is obtained by analyzing the dissipated power values with achieving the best S11 reflection coefficient values. The experimental results achieved -21.553 dB, and -24.816 dB reflection coefficients of the two new probes, 3TSS, and 10TSSS, respectively. In addition, the results validated the proposed finite element model of the proposed probe compared to a real ablation probe.