  We show how to eliminate the error caused by an incorrectly modeled boundary
in electrical impedance tomography (EIT). In practical measurements, one
usually lacks the exact knowledge of the boundary. Because of this the
numerical reconstruction from the measured EIT data is done using a model
domain that represents the best guess for the true domain. However, it has been
noticed that the inaccurate model of the boundary causes severe errors for the
reconstructions. We introduce a new algorithm to find a deformed image of the
original isotropic conductivity based on the theory of Teichmuller spaces and
implement it numerically.
