Abstract
When the technique of invasive microwave hyperthermia is applied to cancer treating, the distribution of microwave thermal field and the effect of the therapy are determined by the type of microwave radiative antenna. The thermal field of biological tissue produced by microwave radiative antenna is investigated in this paper. The distribution of thermal field and specific absorption rate (SAR) of invasive coaxial-slot antenna in the frequency of 2450 MHz are obtained by the technique of finite element analysis. According to the experiment of heating the ex vivo pork liver by this kind of antenna, the result concordant with the theory is obtained. Therefore, it is suggested that this research could be a reference for clinical therapy and operation scheme.
Highlights
Recent years, invasive microwave hyperthermia for cancer treating has been widely investigated
When the technique of invasive microwave hyperthermia is applied to cancer treating, the distribution of microwave thermal field and the effect of the therapy are determined by the type of microwave radiative antenna
The distribution of thermal field and specific absorption rate (SAR) of invasive coaxial-slot antenna in the frequency of 2450 MHz are obtained by the technique of finite element analysis
Summary
Invasive microwave hyperthermia for cancer treating has been widely investigated. Invasive microwave radiative antenna is different from other antennas which are utilized on the humanbody’s superficial surface It should be smaller volume, stronger radiative capability and considerable intensity. Francesca Rossetto calculated the distribution of SAR of 915 MHz microwave antenna by FDTD and simulated on three different human tissues that is of importance to clinic [4]. In order to investigate the distribution of thermal field and optimum antennal pattern in invasive microwave thermal therapy better, the invasive coaxial-slot antenna in the frequency of 2450 MHz was design. After investigating the thermal field of biological tissue which induced by microwave radiative antenna, the distribution of thermal field and SAR of invasive coaxial-slot antenna in the frequency of 2450 MHz were obtained by the technique of finite element analysis. Biomedical Science and Engineering 5 (2012) 198-202 tween simulative results and experimental results was made
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
