Sensitivity matrix and reconstruction algorithm for EIT assuming axial uniformity.
In electrical impedance tomography (EIT) two-dimensional models continue to be applied despite their known inability to provide correct reconstruction. In this paper, a reconstruction algorithm that assumes a translationally invariant conductivity distribution is described. A more precise forward solver is obtained by taking off-slice currents into consideration. An appropriate sensitivity matrix is derived. Numerical evidence for the improvement in precision compared to two-dimensional reconstruction is given.
Jerbi
K
K
Biomedical Engineering Institute, University of Karlsruhe, Germany. up0c@rz.uni-karlsruhe.de
Lionheart
W R
WR
Vauhkonen
P J
PJ
Vauhkonen
M
M
D000465:Algorithms; D017097:Electric Impedance; D005069:Evaluation Studies as Topic; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000706:statistics & numerical data*; D012680:Sensitivity and Specificity; D014054:Tomography / Q000706:statistics & numerical data*