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1: Biomed Eng Online. 2006 Feb 27;5:15.Click here to read Click here to read Links

Antenna design for microwave hepatic ablation using an axisymmetric electromagnetic model.

Bertram JM, Yang D, Converse MC, Webster JG, Mahvi DM.

Biomedical Engineering, University of Wisconsin, Madison, WI 53706 USA. jmbertram@gmail.com

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.

PMID: 16504153 [PubMed - indexed for MEDLINE]

PMCID: PMC1501026