Analysis of a hyperthermic treatment using a reentrant resonant cavity applicator for a heterogeneous model with blood flow

Author

Kanai, Yasushi ; Tsukamoto, Toshio ; Saitoh, Yoshiaki ; Miyakawa, Michio ; Kashiwa, Tatsuya

Author_Institution

Dept. of Inf. & Electron. Eng., Niigata Inst. of Technol., Japan

Volume

33

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

2175

Lastpage

2178

Abstract

Hyperthermic treatment using a reentrant resonant cavity applicator is investigated. By solving time-dependent electromagnetic field-heat transfer equations for a heterogeneous model, temperature distributions in various organs are obtained. Calculated results show that it is indispensable to consider the blood flow to predict accurate temperature distributions during a hyperthermic treatment. Also, it is found that the necessity of measuring the electrical and thermal properties of the abdominal fat accurately as well as optimizing the heating system to avoid the concentration of electromagnetic energy around the abdominal fat-muscle interface

Keywords

biological effects of microwaves; cavity resonators; electromagnetic fields; haemodynamics; haemorheology; heat transfer; hyperthermia; microwave heating; temperature distribution; thermal analysis; abdominal fat; blood flow; electrical properties; electromagnetic energy; fat-muscle interface; heterogeneous model; hyperthermic treatment; organs; reentrant resonant cavity applicator; temperature distribution; thermal properties; time-dependent electromagnetic field-heat transfer equations; Abdomen; Applicators; Blood flow; Electromagnetic fields; Electromagnetic modeling; Energy measurement; Equations; Hyperthermia; Resonance; Temperature distribution;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.582763

Filename

582763