FDTD Calculations of Heating Characteristics of Thin Coaxial Antennas for Medical Treatments

Kazuyuki Saito, Chiba University


In recent years, various types of applications of the microwaves have been investigated and have been applied to the minimally invasive microwave thermal therapy. They are interstitial hyperthermia and microwave coagulation therapy (MCT) for thermal treatment for cancer, cardiac catheter ablation for ventricular arrhythmia treatment and so on. The authors have been studying heating characteristics of thin coaxial antennas for the interstitial hyperthermia and the MCT by using the FDTD (Finite Difference Time Domain) method and the FEM (Finite Element Method). In this paper, we show the instance of heating characteristics of the antennas for the therapies.
Keywords: Hyperthermia, microwave coagulation therapy, thin coaxial antenna, FDTD method, FEM

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