Simulation of SAR and temperature distribution for tumor RF thermotherapy with double-frequencies and double-plates.
- Author:
Zhennan ZHAO
1
;
Fengtong LI
;
Haipan WANG
Author Information
1. Thermal Energy Department, Tianjin University, Tianjin 300072, China. zn_zhao@tju.edu.cn
- Publication Type:Journal Article
- MeSH:
Computer Simulation;
Electromagnetic Fields;
Humans;
Hyperthermia, Induced;
Models, Theoretical;
Neoplasms;
therapy;
Temperature;
Thermal Conductivity
- From:
Journal of Biomedical Engineering
2006;23(1):16-20
- CountryChina
- Language:Chinese
-
Abstract:
The model establishment and numerical simulation of specific absorption rate (SAR) and the unsteady-state temperature distribution for radio frequency (RF) thermotherapy with double-frequencies and double-plates are presented in this paper. The model can correctly reflect the attenuation of electromagnetic wave in the biotissue. The variation of perfusion with temperature and the lower perfusion in tumor tissue are fully considered in the simulation of unsteady-state temperature profiles. Also presented are detailed analyses and discussions on the characteristics of SAR and temperature profiles, and the effects of the plates location and power as well as of the perfusion on the depth of effective treatment.
