Temperature Depending SAR Distribution in Human Body During Hyperthermia Treatment

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概要

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• The simulation of a specific absorption rate (SAR) with a temperature distribution becomes more important in the treatment planning for microwave hyperthermia. The simulation technique can also be used to estimate SAR distribution inside human body under hazardous electromagnetic (EM) field circumstances. In the simulation, to use exact permittivity of biological tissues becomes very important to obtain accurate SAR distribution. The permittivity of the medium is very sensitive to the temperature. Therefore, it is considered that the SAR distribution is also very sensitive to the tissue temperature. In this paper, SAR distribution is calculated using FD-TD method considering tissue temperature under the electromagnetic (EM) field irradiation. Simulations of temperature distribution are also performed using heat transfer equation. In addition, temperature depending blood flow is taking into account to obtain temperature depending SAR distribution. The results can be used to estimate temperature depending heat generation which can be applied such as microwave hyperthermia treatment.

• 社団法人電子情報通信学会の論文
• 1995-08-25

著者

• Nikawa Y

  Kokushikan University

• Nikawa Yoshio

  School Of Electrical Engineering The National Defense Academy

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• Temperature Depending SAR Distribution in Human Body During Hyperthermia Treatment
• A Partially Ferrites Loaded Waveguide Applicator for Local Heating of Tissues

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