Document Type
Article
Language
eng
Format of Original
13 p.
Publication Date
4-2013
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Source Publication
IEEE Transactions on Medical Imaging
Source ISSN
0278-0062
Abstract
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.
Recommended Citation
Hamilton, Sarah J. and Mueller, Jennifer L., "Direct EIT Reconstructions of Complex Admittivities on a Chest-Shaped Domain in 2-D" (2013). Mathematics, Statistics and Computer Science Faculty Research and Publications. 469.
https://epublications.marquette.edu/mscs_fac/469
Comments
Accepted version. IEEE Transactions on Medical Imaging, Vol. 32, No. 4 (April 2013): 757-769. DOI. © 2013 IEEE. Used with permission.
Sarah Hamilton was affiliated with Colorado State University at the time of publication.