Capacitance Measurement Method for Reconstructed Image of Permittivity Distribution on Brain Phantom

Abstract

The purpose of our research is to image temperature distribution inside the human head by non-invasive measurement. To achieve this goal, we investigate a method to image inhomogeneous permittivity distribution by measuring capacitance, and in addition to measure the temperature distribution using a permittivitytemperature characteristic. This paper describes the first step in estimating inhomogeneous permittivity distribution using our proposed new capacitance measurement method. We present the results of experiments performed using the proposed method on a homogeneous phantom containing agar-agar. As a result, we estimate that the proposed method is functional for the imaging of inhomogeneous permittivity distribution, although some of the problems in this measurement procedure and image reconstruction system are remained to be solved.