A new heating method using pulse modulated microwaves

Author

Yamamoto, Kanji ; Nikawa, Yoshio

Author_Institution

Dept. of Electr. Eng., Nat. Defense Acad., Yokosuka, Japan

Volume

5

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

1857

Abstract

Microwaves penetrate quite shallowly in human tissues, especially muscle and skin which are so-called high water content tissues. Therefore, it is very difficult to heat deep seated tumors by microwaves. In this paper, the authors consider pulse modulated microwaves irradiated toward a target located inside the tissues. In the simulation, the FD-TD method is used to obtain the microwave distribution in the tissues. The results indicate that the pulse modulated microwaves propagate to the target effectively. This means that it is possible to heat more deep targets by pulse modulated microwaves compared with the CW irradiation method

Keywords

electromagnetic wave propagation; finite difference time-domain analysis; hyperthermia; microwave heating; physiological models; radiation therapy; CW irradiation method; deep targets; heating method; high water content tissues; microwave therapy; muscle; pulse modulated microwaves; skin; Biological system modeling; Electromagnetic heating; Frequency; Humans; Hyperthermia; Microwave propagation; Microwave theory and techniques; Muscles; Pulse modulation; Skin;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.646289

Filename

646289