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Application of conformal transformation on the analysis of forward problems in electrical impedance tomography

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3 Author(s)
K. E. Akdogan ; Hacettepe Univ., Ankara, Turkey ; A. Yilmaz ; B. Saka

Electrical impedance tomography (EIT) shows the conductivity distribution through the cross-section of a body part. It is reported that the image reconstruction is distorted considerably when the boundary shape is considered to be more elliptical than circular in a thorax model. The elliptic geometry model, which constructs more general structure, reduces the amount of problems and ensures more accurate results about perceiving inhomogeneities. In this study, the forward problem of EIT is analyzed under elliptical and circular frameworks by using an analytical and finite element method. The analytical solution defined for elliptic geometry is improved by applying the conformal transformation to the forward problem.

Published in:

Signal Processing and Communications Applications Conference, 2004. Proceedings of the IEEE 12th

Date of Conference:

28-30 April 2004