基于轴对称电磁模型的用于微波肝消融的天线设计
Antenna design for microwave hepatic ablation using an axisymmetric electromagnetic model.
作者信息
Bertram John M, Yang Deshan, Converse Mark C, Webster John G, Mahvi David M
机构信息
Biomedical Engineering, University of Wisconsin, Madison, WI 53706 USA.
出版信息
Biomed Eng Online. 2006 Feb 27;5:15. doi: 10.1186/1475-925X-5-15.
BACKGROUND
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.
METHODS AND RESULTS
As an example, a double slot choked antenna for hepatic MWA was designed and implemented using FEMLABtrade mark 3.0.
DISCUSSION
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.
背景
采用轴对称有限元方法（FEM）模型来演示用于肝脏微波消融（MWA）的天线设计中所使用的重要技术。为了有效治疗深部肝脏肿瘤，这些天线应产生高度局部化的比吸收率（SAR）模式，并在批准的发生器频率下成为高效辐射器。
方法与结果
例如，使用FEMLAB商标3.0设计并实现了一种用于肝脏MWA的双槽扼流天线。
讨论
本文强调了可能影响模拟精度的因素的重要性，这些因素包括边界条件、肝组织的介电特性和网格分辨率。
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