Reconstructions of chest phantoms by the D-bar method for electrical impedance tomography
Isaacson, D.
Mueller, J.L.
Newell, J.C.
Siltanen, S.
Rensselaer Polytech. Inst., Troy, NY, USA;
This paper appears in: Medical Imaging, IEEE Transactions on
Publication Date: July 2004
Volume: 23,
Issue: 7
On page(s): 821-828
Location: Davis, CA, USA,
ISSN: 0278-0062
INSPEC Accession Number: 8034167
Digital Object Identifier: 10.1109/TMI.2004.827482
Current Version Published: 2004-07-06
Abstract
The problem this paper addresses is how to use the two-dimensional D-bar method for electrical impedance tomography with experimental data collected on finitely many electrodes covering a portion of the boundary of a body. This requires an approximation of the Dirichlet-to-Neumann, or voltage-to-current density map, defined on the entire boundary of the region, from a finite number of matrix elements of the current-to-voltage map. Reconstructions from experimental data collected on a saline filled tank containing agar heart and lung phantoms are presented, and the results are compared to reconstructions by the NOSER algorithm on the same data.
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