Body conformable 915 MHz microstrip array applicators for large surface area hyperthermia

Author

Lee, Eric R. ; Wilsey, Tawna R. ; Tarczy-Hornoch, P. ; Kapp, Daniel S. ; Fessenden, Peter ; Lohrbach, Allen ; Prionas, Stavros D.

Author_Institution

Dept. of Radiat. Oncol., Stanford Univ. Med. Center, CA, USA

Volume

39

Issue

5

fYear

1992

fDate

5/1/1992 12:00:00 AM

Firstpage

470

Lastpage

483

Abstract

The optimal treatment with hyperthermia of superficially located tumors which involve large surface areas requires applicators which can physically conform to body contours, and locally alter their power deposition patterns to adjust for nonuniform temperature caused by tissue inhomogeneities and blood flow variations. A series of 915-MHz microstrip array applicators satisfying these criteria have been developed and clinically tested. Clinical and engineering design tradeoff´s for practical devices are discussed. Measurements taken in tissue equivalent phantoms and a summary of clinical experiences with these microstrip arrays are presented.

Keywords

biomedical equipment; biothermics; microstrip antennas; radiation therapy; radiofrequency heating; 915 MHz; blood flow variations; body conformable applicators; body contours; clinical experiences; large surface area hyperthermia; microstrip array applicators; nonuniform temperature; optimal hyperthermia treatment; power deposition patterns; superficially located tumors; tissue equivalent phantoms; tissue inhomogeneities; Applicators; Blood flow; Design engineering; Hyperthermia; Microstrip antenna arrays; Neoplasms; Power engineering and energy; Surface treatment; Temperature; Testing; Electric Conductivity; Electronics, Medical; Equipment Design; Humans; Hyperthermia, Induced; Models, Structural; Neoplasms;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.135541

Filename

135541