Antenna design for microwave hepatic ablation using an axisymmetric electromagnetic model

Biomedical Engineering Online
John M BertramDavid M Mahvi

Abstract

An axisymmetric finite element method (FEM) model was employed to demonstrate important techniques used in the design of antennas for hepatic microwave ablation (MWA). To effectively treat deep-seated hepatic tumors, these antennas should produce a highly localized specific absorption rate (SAR) pattern and be efficient radiators at approved generator frequencies. As an example, a double slot choked antenna for hepatic MWA was designed and implemented using FEMLABtrade mark 3.0. This paper emphasizes the importance of factors that can affect simulation accuracy, which include boundary conditions, the dielectric properties of liver tissue, and mesh resolution.

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Citations

Oct 5, 2013·Medical Physics·Ravi Kumar Kannadorai, Quan Liu
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Mar 29, 2021·Physica Medica : PM : an International Journal Devoted to the Applications of Physics to Medicine and Biology : Official Journal of the Italian Association of Biomedical Physics (AIFB)·Hangming HuangBing Zhang

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Methods Mentioned

BETA
surgical resection
SMA
dielectric spectroscopy

Software Mentioned

[UNK]
CEM
FEMLAB
COMSOL

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