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Data recovery from reduced electrode connection in electrical impedance tomography
1Department of Biomedical Engineering and Medical Physics, Keele University, North Staffordshire Hospital, Hartshill, Stoke-on-Trent, UK.
Abstract:
In electrical impedance tomography, a single channel failure causes distortion to the overall image. Mathematical modelling and curve-fitting techniques were used to recover corrupted data. A single channel was disconnected in two experiments on a saline-filled dish with one and two objects, respectively. Voltage gradient data were then synthesized from the overall shape of the curve and reconstructed. The technique demonstrated a considerable improvement in the image quality. We conclude that the technique can be adapted in applications where channel failure can occur regularly such as neonatal monitoring.