PMID: 8599692Nov 1, 1995Paper

Identifying oesophageal contents using electrical impedance tomography

Physiological Measurement
R A ErolK D Bardhan

Abstract

Investigations have been carried out using the Sheffield mark II real-time EIT system, to look at changes in conductivity associated with swallowing. A ring of 16 electrodes was placed around the neck of 10 subjects, who then performed swallows with four liquids of different conductivities, ranging from water (sigma = 0.03 mS cm-1) to salty soup (sigma = 35.8 mS cm-1). Results showed that the conductive and non-conductive liquids could be distinguished. Bolus transit times were calculated from region of interest curves, and the average transit time for the 10 subjects was found to be 320 +/- 100 ms.

References

Nov 1, 1976·The American Journal of Digestive Diseases·O T NebelD O Castell
Jan 1, 1992·Clinical Physics and Physiological Measurement : an Official Journal of the Hospital Physicists' Association, Deutsche Gesellschaft Für Medizinische Physik and the European Federation of Organisations for Medical Physics·A M SintonA D Leathard
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Citations

Jul 23, 2003·The American Journal of Gastroenterology·David Y Graham
Jul 6, 2020·International Journal for Numerical Methods in Biomedical Engineering·Peng RanJingwen Wang
Jun 19, 2003·Physiological Measurement·Nirmal K SoniKeith D Paulsen

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