Evaluation of a dual-arm Archimedean spiral array for microwave hyperthermia.


Journal Article

This effort describes a third-party performance evaluation of a novel, commercial, dual-armed Archimedean spiral array hyperthermia applicator. The applicator is analysed for its ability to couple efficiently into muscle equivalent phantom loads, operate over a broad bandwidth to help accommodate variable tissue properties and generate predictable and repeatable SAR contours that are adaptable to clinically probable disease shapes.Characterization of the applicator includes E-field and return-loss measurements in liquid muscle tissue-equivalent phantom, as well as comparison of 'treatment-planning' simulations of several possible array SAR patterns with measured SAR from non-coherently driven spiral array antennae.The applicator demonstrates a reasonably low return loss over a large bandwidth and the ability to generate a very uniform heating pattern. Ability to adjust SAR contours spatially to fit specific shapes is also demonstrated.This device should prove a welcome addition to a currently limited set of superficial heating applicators to provide controllable heating of superficial tissue disease.

Full Text

Cited Authors

  • Johnson, JE; Neuman, DG; Maccarini, PF; Juang, T; Stauffer, PR; Turner, P

Published Date

  • September 2006

Published In

Volume / Issue

  • 22 / 6

Start / End Page

  • 475 - 490

PubMed ID

  • 16971368

Pubmed Central ID

  • 16971368

Electronic International Standard Serial Number (EISSN)

  • 1464-5157

International Standard Serial Number (ISSN)

  • 0265-6736

Digital Object Identifier (DOI)

  • 10.1080/02656730600905595


  • eng