The use of dual reciprocity method for electrical impedance tomography

The paper presents the use of the Dual Reciprocity Boundary Element Method (DRM) for the solution of the inverse problem described with Poisson's equation. The DRM approach has been chosen because it is ideal for the treatment of the nonhomogeneous part of Poisson's equation that determines the source distribution or the conductivity distribution of the inverse problem. The "mixed" boundary elements were used to discretize the problem. The presented DRM approach to the solution of the inverse problem is demonstrated on a 2D problem that has an analytical solution. The unknown conductivity distribution inside the 2D square conductivity domain is calculated.