Influence of source offset on breast tumor hyperthermia with Γ-shaped LHM lens applicator

Author

Tao, Yonghui ; Wang, Gang

Author_Institution

Dept. of Telecommun. Eng., Jiangsu Univ., Zhenjiang, China

fYear

2010

fDate

8-11 May 2010

Firstpage

1859

Lastpage

1861

Abstract

The losses and random heterogeneity of breast tissue will introduce shift of focal point of flat LHM lens in tissue. Therefore it is highly desired that the sources behind the LHM lenses are set at their right positions. In this paper, the influence of source offset on breast tumor hyperthermia with Γ-shaped LHM lens applicator is investigated by using finite-difference time-domain simulation. It is demonstrated that only when the two sources of source amplitude of 9.4 V/cm are correctly deployed at the points (x=2.5cm, z=-12.5 cm) and (x=12.5, z=-2.5 cm), the highest temperature measured in tumor can reach expected 43°C.

Keywords

biological organs; cancer; finite difference time-domain analysis; gynaecology; hyperthermia; lenses; metamaterials; microwave heating; tumours; Γ-shaped LHM lens applicator; breast tumor; finite-difference time-domain simulation; hyperthermia; random heterogeneity; Applicators; Breast neoplasms; Breast tissue; Breast tumors; Electromagnetic heating; Finite difference methods; Hyperthermia; Lenses; Permittivity; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Millimeter Wave Technology (ICMMT), 2010 International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-5705-2

Type

conf

DOI

10.1109/ICMMT.2010.5524876

Filename

5524876