Reconstructions of chest phantoms by the D-bar method for electrical impedance tomography.
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.
Isaacson
David
D
Colorado State University, Fort Collins, CO 80523, USA.
Mueller
Jennifer L
JL
Newell
Jonathan C
JC
Siltanen
Samuli
S
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
D000362:Agar