Modeling of interstitial applicators used for microwave hyperthermia of bone cancer based on subgridding FDTD method

Author

Xiaoli, Xi ; Wenbing, Wang

Author_Institution

Xi´´an Jiaotong Univ., China

fYear

2003

fDate

Oct. 28 2003-Nov. 1 2003

Firstpage

645

Lastpage

648

Abstract

In this paper, the subgridding finite-difference time-domain (FDTD) method is used to analyze the electromagnetic field distribution of the various kinds of interstitial applicators for treating the bone cancers. The 3-dimension subgridding FDTD program is tested by the radiation of an electric dipole in the free space. The calculating results show that the slot applicator is much better than the simple applicator that has been used in clinic for treating the bone cancer. The slot applicator with an enlarged cap can enhance the top field for heating the boundary tissue. The results of this research are very useful to improve the clinic microwave hyperthermia effect of bone tumors in the future.

Keywords

bone; cancer; electromagnetic fields; finite difference time-domain analysis; hyperthermia; bone cancer; clinic microwave hyperthermia effect; electromagnetic field distribution; interstitial applicators; subgridding finite-difference time-domain method; Applicators; Bones; Cancer; Electromagnetic analysis; Electromagnetic fields; Electromagnetic heating; Finite difference methods; Hyperthermia; Microwave theory and techniques; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 6th International SYmposium on

Conference_Location

Beijing, China

Print_ISBN

0-7803-7831-8

Type

conf

DOI

10.1109/ISAPE.2003.1276773

Filename

1276773