Antenna design for microwave hepatic ablation using an axisymmetric electromagnetic model

John M. Bertram, Deshan Yang, Mark C. Converse, John G. Webster*, David M. Mahvi

*Corresponding author for this work

Research output: Contribution to journalArticle

46 Scopus citations

Abstract

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 FEMLAB™ 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.

Original languageEnglish (US)
Article number15
JournalBioMedical Engineering Online
Volume5
DOIs
StatePublished - Feb 27 2006

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Biomaterials
  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

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