Clinical performance of a novel textile interface for neonatal chest electrical impedance tomography

Sophocleous, L. and Frerichs, Inez and Miedema, M. and Kallio, M. and Papadouri, T. and Karaoli, Christina and Becher, T. and Tingay, David and van Kaam, Anton and Bayford, Richard and Waldmann, Andreas D. (2018) Clinical performance of a novel textile interface for neonatal chest electrical impedance tomography. Physiological Measurement, 39 (4). ISSN 0967-3334

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Abstract

Objective: Critically ill neonates and infants might particularly benefit from continuous chest electrical impedance tomography (EIT) monitoring at the bedside. In this study a textile 32-electrode interface for neonatal EIT examination has been developed and tested to validate its clinical performance. The objectives were to assess ease of use in a clinical setting, stability of contact impedance at the electrode–skin interface and possible adverse effects.
Approach: Thirty preterm infants (gestational age: 30.3 ± 3.9 week (mean ± SD), postnatal age: 13.8 ± 28.2 d, body weight at inclusion: 1727 ± 869 g) were included in this multicentre study. The electrode–skin contact impedances were measured continuously for up to 3 d and analysed during the initial 20-min phase after fastening the belt and during a 10 h measurement interval without any clinical interventions. The skin condition was assessed by attending clinicians.
Main results: Our findings imply that the textile electrode interface is suitable for long-term neonatal chest EIT imaging. It does not cause any distress for the preterm infants or discomfort. Stable contact impedance of about 300 Ohm was observed immediately after fastening the electrode belt and during the subsequent 20 min period. A slight increase in contact impedance was observed over time. Tidal variation of contact impedance was less than 5 Ohm.
Significance: The availability of a textile 32-electrode belt for neonatal EIT imaging with simple, fast, accurate and reproducible placement on the chest strengthens the potential of EIT to be used for regional lung monitoring in critically ill neonates and infants.

Item Type: Article
Additional Information: Article number = 044004
Research Areas: A. > School of Science and Technology > Natural Sciences > Biophysics and Bioengineering group
Item ID: 24283
Notes on copyright: This is an author-created, un-copyedited version of an article accepted for publication/published in Physiological Measurement. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1361-6579/aab513
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Depositing User: Richard Bayford
Date Deposited: 22 May 2018 09:49
Last Modified: 15 Nov 2018 22:38
URI: http://eprints.mdx.ac.uk/id/eprint/24283

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