title: Data recovery from reduced electrode connection in electrical impedance tomography.
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.
authors.affiliation: Department of Biomedical Engineering and Medical Physics, Keele University, North Staffordshire Hospital, Hartshill, Stoke-on-Trent, UK.
authors.forename: A
authors.initials: A
authors.lastname: Taktak
authors.forename: P
authors.initials: P
authors.lastname: Record
authors.forename: R
authors.initials: R
authors.lastname: Gadd
authors.forename: P
authors.initials: P
authors.lastname: Rolfe
mesh_terms: D001698:Biomedical Engineering; D003627:Data Interpretation, Statistical; D017097:Electric Impedance; D004566:Electrodes; D004868:Equipment Failure; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods / Q000706:statistics & numerical data; D007231:Infant, Newborn; D008962:Models, Theoretical; D008991:Monitoring, Physiologic; D014054:Tomography / Q000295:instrumentation / Q000379:methods* / Q000706:statistics & numerical data