Electromagnetic focusing in biological tissues

Author

Brink, W.M. ; Lager, I.E. ; Kooij, B.J.

Author_Institution

Microwave Technol. & Syst. for Radar, Delft Univ. of Technol., Delft, Netherlands

fYear

2011

fDate

11-15 April 2011

Firstpage

2915

Lastpage

2919

Abstract

In this work we assess the feasibility of focused electromagnetic ablation of breast cancer. In our approach we consider two degrees of freedom, namely the bolus permittivity and the operational frequency. The electric fields in a two-dimensional configuration are computed per source using the iterative conjugate gradient method. The fields are subsequently focused in two lesions. The focusing performance is evaluated through the normalized cumulative histograms corresponding to the dissipated power patterns, indicating the potential of the treatment.

Keywords

biological effects of fields; biological tissues; biomagnetism; cancer; conjugate gradient methods; iterative methods; permittivity; biological tissues; bolus permittivity; breast cancer; dissipated power patterns; electric fields; electromagnetic focusing; focused electromagnetic ablation; focusing performance; iterative conjugate gradient method; normalized cumulative histograms; operational frequency; two-dimensional configuration; Arrays; Breast; Electromagnetics; Focusing; Permittivity; Skin; Tumors;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on

Conference_Location

Rome

Print_ISBN

978-1-4577-0250-1

Type

conf

Filename

5782127