A Floating Sleeve Antenna Yields Localized Hepatic Microwave Ablation

Overview

Journal IEEE Trans Biomed Eng

Specialties Biomedical Engineering
Biophysics

Date 2006 Mar 15

PMID 16532780

Citations 19

Authors

Deshan Yang

John M Bertram

Mark C Converse

Ann P ORourke

John G Webster

Susan C Hagness

James A Will

David M Mahvi

Affiliations

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Abstract

We report a novel coaxial antenna for hepatic microwave ablation. This device uses a floating sleeve, that is, a metal conductor electrically isolated from the outer connector of the antenna coaxial body, to achieve a highly localized specific absorption rate pattern that is independent of insertion depth. This floating sleeve coaxial dipole antenna has low power reflection in the 2.4-GHz IMS band. Ex vivo experiments confirm our numerical simulation results. Index Terms-Ablation, coaxial aperture antennas, finite element methods, floating sleeve, microwave heating.

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