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Imaging of temperature-change distribution in the brain phantom by means of capacitance measurement

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2 Author(s)
Kimoto, A. ; Dept. of Electr. & Electron. Eng., Saga Univ., Japan ; Shida, K.

The final purpose of this study is to realise a noninvasive imaging system of temperature-change distribution in the human head. Human tissue can be generally electrically characterized using resistance and capacitance measurement. Capacitance is related to permittivity with the temperature characteristic. In our method, capacitance is measured using many small electrodes arranged on the surface of the human head. Using their values, the permittivity distribution is reconstructed, and then, the change of their images is replaced by temperature-change distribution using the permittivity-temperature characteristic. In this paper, the reconstruction of temperature-change distribution in the brain phantom by means of the capacitance measurement method has been obtained with the phantom. As a result, although improvement in the measurement system and reconstruction algorithm is needed, the pattern of temperature-change could be presented

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Instrumentation and Measurement, IEEE Transactions on  (Volume:49 ,  Issue: 3 )