Title :
FDTD electromagnetic and thermal analysis of interstitial hyperthermic applicators
Author :
Gentili, Guido Biffi ; Leoncini, Marco ; Trembly, B. Stuart ; Schweizer, Steven E.
Author_Institution :
Dept. of Electr. Eng., Florence Univ., Italy
Abstract :
The electromagnetic and thermal behavior of interstitial applicators was analyzed by using the finite-difference time-domain method. Two configurations were considered: a simple insulated dipole antenna radiating in a layered tissue, and an air cooled applicator radiating in a tissue-equivalent phantom. The proposed approach allows a detailed modeling of the complete structure of the applicator. Furthermore, specific absorption rate and temperature distributions can be determined considering real clinical or experimental conditions. The temperature distribution for the air cooled applicator has been compared with experimental results.
Keywords :
biomedical equipment; dipole antennas; finite difference time-domain analysis; hyperthermia; microwave antennas; microwave heating; temperature distribution; thermal analysis; air cooled applicator; detailed modeling; electromagnetic analysis; interstitial hyperthermic applicators; layered tissue; medical instrumentation; simple insulated dipole antenna; specific absorption rate; tissue-equivalent phantom; Applicators; Dipole antennas; Electromagnetic analysis; Electromagnetic radiation; Finite difference methods; Hyperthermia; Imaging phantoms; Insulation; Temperature distribution; Time domain analysis; Electromagnetics; Humans; Hyperthermia, Induced; Microwaves; Models, Theoretical; Phantoms, Imaging; Temperature;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
