A method of reducing the error caused by boundary shape and electrode positions in electrical impedance tomography.
This paper describes a method of reducing the influence of the data error caused by non-ideal boundary shape and electrode placement on reconstructed images. A data calibration and a modified Newton-Raphson reconstruction are combined in the method to ensure rapid convergence and small reconstruction error. The method is verified by the simulated data of a 2D software phantom and the practical measurements of a cylindrical saline tank.
Li
J
J
Institut für Biomedizinische Technik, Universität Stuttgart, Germany.
D000465:Algorithms; D002138:Calibration; D017097:Electric Impedance; D004566:Electrodes; D007091:Image Processing, Computer-Assisted; D008962:Models, Theoretical; D012984:Software; D014054:Tomography / Q000295:instrumentation*