Conductivity imaging of pseudo human body by the electrical exploration method

Abstract

The body surface electric potential measurement is useful for screening of cardiac disease. However, it takes a long time to measure the body surface electrical potential measurement because a lot of electrodes must be placed on the chest. Therefore a small electrode array seat which has forty five electrodes and made of silicone was used. For more precise measurement, the impedance measurement is very important, because the surface potential distribution is affected by the impedance distribution in the chest.In this study, Impedance distribution in the water to simulate a human body's chest environment. The forty five electrodes were arranged at the center of the water tank. These electrodes were used for both the voltage application and the potential measurement. The conductivity distribution was reconstructed with the electric exploration method on a PC. As a result, Conductivity distribution in the water tank with the gels was measured successfully.