Title :
Electro-thermal computational suit for investigation of RF power absorption and associated temperature change in human body
Author :
Zaridze, R. ; Gritsenko, N. ; Kajaia, G. ; Nikolaeva, E. ; Razmadze, A. ; Shoshiashvili, L. ; Bijamov, A. ; Bit-Babik, G. ; Faraone, A.
Author_Institution :
Lab. of Appl. Electrodynamics, Tbilisi State Univ., Georgia
Abstract :
The RF power absorption and specific absorption rate (SAR) distribution in a simplified three layer head phantom is investigated using a recently developed computational suit for electromagnetic and thermal analysis of biological objects exposed to RF energy. The simulations are based on FDTD methodology which is implemented in the code. The program is suitable for parametric analysis based on various thermal properties of the tissues including blood perfusion to study their influence on temperature change and its distribution associated with RF exposure. Various SAR averaging volumes are considered to find the one that is best correlated with temperature change distribution. The computations are performed at frequencies from 0.3 GHz to 3 GHz.
Keywords :
UHF radio propagation; biological tissues; electromagnetic wave absorption; finite difference time-domain analysis; haemorheology; phantoms; temperature distribution; thermal analysis; 0.3 to 3 GHz; FDTD methodology; RF power absorption; SAR averaging volumes; SAR distribution; biological objects; blood perfusion; electro-thermal computational suit; human body; parametric analysis; specific absorption rate; temperature change distribution; thermal analysis; three layer head phantom; tissues; Biological information theory; Biology computing; Distributed computing; Electromagnetic analysis; Electromagnetic wave absorption; Humans; Imaging phantoms; Radio frequency; Specific absorption rate; Temperature distribution;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552137
