Abstract
We realized a new electrical impedance tomography (EIT) based on the tetrapolar circuit method with the scanning of magnetic field superimposed for localizing the current distribution in biological tissues. In this method, two voltage differences are detected on two sides of the body, in which the distribution of constant current component is parallel. As the voltage difference of one side becomes zero, the eddy current component is produced by a magnetic field applied to the body from an electromagnetic core. Sustaining this state, the electromagnetic core is moved from side to side. The voltage differences at the other side measured during this movement of the magnetic field are used to estimate the resistance distribution of one dimension. As the result of a model experiment, it was confirmed that this method would be useful to realize EIT.
