Title :
Investigations on variation tendency of electric parameters for biological tissues during microwave heating
Author :
Zhou, Lixue ; Che, Wenquan
Author_Institution :
Dept. of Electr. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
PMCT probe, saying, one kind of open-ended coaxial probe adopted widely in microwave coagulation therapy of cancer, is used to measure the complex permittivity of biological tissues in this work. This work aims to find the variation tendency of the permittivity for biological tissues when the biological tissues are heated by microwave percutaneous coagulator (MPC) with different power for different time. In addition, the admittance model is employed to extract the permittivity of the biological tissues of our interest, and the corresponding permittivity is calculated in the frequency range from 900 MHz to 4 GHz.
Keywords :
bioelectric phenomena; biological tissues; cancer; microwave heating; permittivity; radiation therapy; PMCT probe; admittance model; biological tissues; cancer; electric parameters; frequency 900 MHz to 4 GHz; microwave heating; open-ended coaxial probe; percutaneous microwave coagulation therapy; permittivity; Biological tissues; Cancer; Coagulation; Coaxial components; Electromagnetic heating; Medical treatment; Microwave measurements; Permittivity measurement; Probes; Resistance heating; PMCT probe; biological tissue; permittivity; polar molecule; positive/negative function;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5384194
