MEASURING THE DIELECTRIC PROPERTIES OF TUMOR AND BREAST PHANTOMS USED IN THE MICROWAVE FREQUENCY RANGE
Abstract
INTRODUCTION: This article deals with measurement of dielectric properties (relative permittivity and conductivity) of phantoms, specifically a tumor phantom and a breast phantom. We focused on the waveguide and resonance methods for the measurement of dielectric properties. The article describes the principle of these methods, and also the production process of a breast phantom and a tumor phantom. These phantoms can be used for measurements in the microwave frequency range, 8–12 GHz.
OBJECTIVE: The study’s objective was to design a tumor phantom and a breast phantom, and to measure their dielectric properties. These properties must simulate human tissue.
METHODS: To measure dielectric properties of human tissue, phantoms were designed using the waveguide Hippel`s method and the resonance method with a cavity resonator.
RESULTS: The aim of this work was to create the phantoms that would have properties comparable to those of real tissues. Results of measurement are shown as frequency dependence of relative permittivity and conductivity for breast, breast phantom, tumor, and tumor phantom.References
Faktorova, D. (2010, November). Malignant tissue phantom dielectric properties investigation at microwave frequencies. In Applied Sciences in Biomedical and Communication Technologies (ISABEL), 2010 3rd International Symposium on (pp. 1-5). IEEE.
Faktorova, D. (2014) Basics of microwave measurements. Zilina: EDIS - Publishers ZU. ISBN 978-80-554-0870-5.
Chaudhary, S. S., Mishra, R. K., Swarup, A., & Thomas, J. M. (1984). Dielectric properties of normal & malignant human breast tissues at radiowave & microwave frequencies. Indian journal of biochemistry & biophysics, 21(1), 76.
Kumar, Y. R., & Raju, G. (2014). Study of characteristics for dielectric properties of various biological tissues. International Journal of Advanced Research in Computer and Communication Engineering, Vol. 3, Issue 1.
Lazebnik, M., Popovic, D., McCartney, L., Watkins, C. B., Lindstrom, M. J., Harter, J. & Temple, W. (2007). A large-scale study of the ultrawideband microwave dielectric properties of normal, benign and malignant breast tissues obtained from cancer surgeries. Physics in Medicine and Biology, 52(20), 6093.
Ortega-Palacios, R., Leija, L., Vera, A., & Cepeda, M. F. J. (2010, September). Measurement of breast-tumor phantom dielectric properties for microwave breast cancer treatment evaluation. In Electrical Engineering Computing Science and Automatic Control (CCE), 2010 7th International Conference on (pp. 216-219). IEEE.
Tofighi, M. R., & Daryoush, A. (2006). Measurement techniques for the electromagnetic characterization of biological materials. Engineering Electromagnetic Applications.
Venkatesh, M. S., & Raghavan, G. S. V. (2005). An overview of dielectric properties measuring techniques. Canadian Biosystems Engineering, 47(7), 15-30.
Copyright information
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (Creative Commons Attribution License 3.0 - CC BY 3.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
info@iseic.cz, www.iseic.cz, ojs.journals.cz
