title: Reconstructions of chest phantoms by the D-bar method for electrical impedance tomography.
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.
authors.affiliation: Colorado State University, Fort Collins, CO 80523, USA.
authors.forename: David
authors.initials: D
authors.lastname: Isaacson
authors.forename: Jennifer L
authors.initials: JL
authors.lastname: Mueller
authors.forename: Jonathan C
authors.initials: JC
authors.lastname: Newell
authors.forename: Samuli
authors.initials: S
authors.lastname: Siltanen
mesh_terms: D000362:Agar; D000465:Algorithms; D002307:Cardiography, Impedance / Q000295:instrumentation* / Q000379:methods; D017097:Electric Impedance; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation* / Q000379:methods; D015233:Models, Statistical; D019047:Phantoms, Imaging; D012542:Scattering, Radiation; D013909:Thorax / Q000502:physiology*; D014054:Tomography / Q000295:instrumentation* / Q000379:methods
chemical_list: D000362:Agar