Direct EIT Reconstructions of Complex Admittivities on a Chest-Shaped Domain in 2-D

Document Type




Format of Original

13 p.

Publication Date



Institute of Electrical and Electronics Engineers (IEEE)

Source Publication

IEEE Transactions on Medical Imaging

Source ISSN



Electrical impedance tomography (EIT) is a medical imaging technique in which current is applied on electrodes on the surface of the body, the resulting voltage is measured, and an inverse problem is solved to recover the conductivity and/or permittivity in the interior. Images are then formed from the reconstructed conductivity and permittivity distributions. In the 2-D geometry, EIT is clinically useful for chest imaging. In this work, an implementation of a D-bar method for complex admittivities on a general 2-D domain is presented. In particular, reconstructions are computed on a chest-shaped domain for several realistic phantoms including a simulated pneumothorax, hyperinflation, and pleural effusion. The method demonstrates robustness in the presence of noise. Reconstructions from trigonometric and pairwise current injection patterns are included.


IEEE Transactions on Medical Imaging, Vol. 32, No. 4 (April 2013): 757-769. DOI.

Sarah Hamilton was affiliated with Colorado State University at the time of publication.