Antennas Design for Microwave Ablation in Bone Tissue: Simulation and Experimental Validation
| Autor: | Citlalli Trujillo Romero, Arturo Vera Hernandez, Texar Javier Ramirez Guzman, Lorenzo Leija Salas |
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| Rok vydání: | 2019 |
| Předmět: |
Coupling
Materials science 010504 meteorology & atmospheric sciences Quantitative Biology::Tissues and Organs Acoustics Physics::Medical Physics 05 social sciences Microwave ablation Choke 01 natural sciences Finite element method 0502 economics and business Parametric model Standing wave ratio 050207 economics Antenna (radio) Monopole antenna Computer Science::Information Theory 0105 earth and related environmental sciences |
| Zdroj: | CCE |
| DOI: | 10.1109/iceee.2019.8884575 |
| Popis: | The objective of this study was to analyze the performance of two types of antennas proposed for microwave ablation as possible treatment for bone tumors by making a comparison between simulations and experiments. The design and optimization, by using computational parametric models and the Finite Element Method (FEM), allowed to predict the behavior of two antennas, a Metal-Tip Monopole antenna (MTM) and a Double Slot Choke antenna (DSC) when they are in contact with bone tissue. The parameters to evaluate the coupling of the antennas were the standing wave ratio (SWR) values, heating patterns and temperatures reached. Optimized antennas were fabricated from an UT-085 semi-rigid micro-coaxial cable in order to replicate the design used in the FEM models. Ex vivo porcine bones were ablated with the fabricated antennas using 10 W during 5 min. Both antennas reached ablation temperatures around 60°C-100°C. |
| Databáze: | OpenAIRE |
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