Linearization Approach for Impedance Reconstruction in Human Body from Surface Potentials Measurements
نویسندگان
چکیده
The paper describes a fast and simple method to find the deviation of impedance of different tissues from the average values known from the literature. A technique similar to the Electrical Impedance Tomography is used assuming the geometry of organs to be known. To find the individual impedance deviations, we assume that the change of the surface potentials depends linearly on a small (up to 10%) conductivity change. In that case one can find the individual impedance deviations by an inverse-matrix multiplication. The results of numerical simulations demonstrate the successfull reconstruction of impedance deviations up to 10% from the average value for several tissues simultaneously.
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