Title :
Estimation of Heating Rate in the Near Zone of Interstitial Microwave Applicator
Author_Institution :
Inst. of Electron. & Mech. Eng., Yuri Gagarin State Tech. Univ. of Saratov, Saratov, Russia
Abstract :
A new combined approach to modeling processes of microwave ablation of biological tissues is described. The heating rate in the near zone of coaxial antenna during ablation is calculated using a virtual waveguide cell with a thin dielectric rod, and simple analytical expression for temperature as a function of time, power density and thermal parameters of a tissue. Results of theoretical calculations are compared with experimental data of ex-vivo studies of the microwave ablation of liver.
Keywords :
antennas; biological tissues; dielectric waveguides; hyperthermia; liver; microwave heating; biological tissue; coaxial antenna zone; ex-vivo study; heating rate estimation; interstitial microwave applicator; liver; microwave ablation; power density; thermal parameter; thin dielectric rod; virtual waveguide cell; Dielectrics; Electromagnetic heating; Microwave FET integrated circuits; Microwave antennas; Microwave integrated circuits; Microwave theory and techniques; Coaxial antenna; dielectric permittivity; microwave ablation; modeling;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2014.2329095
