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Towards a thoracic conductive phantom for EIT

de Gelidi, S; Seifnaraghi, N; Bardill, A; Wu, Y; Frerichs, I; Demosthenous, A; Tizzard, A; (2020) Towards a thoracic conductive phantom for EIT. Medical Engineering & Physics , 77 pp. 88-94. 10.1016/j.medengphy.2019.10.008. Green open access

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Abstract

Phantom experiments are a crucial step for testing new hardware or imaging algorithms for electrical impedance tomography (EIT) studies. However, constructing an accurate phantom for EIT research remains critical; some studies have attempted to model the skull and breasts, and even fewer, as yet, have considered the thorax. In this study, a critical comparison between the electrical properties (impedance) of three materials is undertaken: a polyurethane foam, a silicone mixture and a thermoplastic polyurethane filament. The latter was identified as the most promising material and adopted for the development of a flexible neonatal torso. The validation is performed by the EIT image reconstruction of the air filled cavities, which mimic the lung regions. The methodology is reproducible for the creation of any phantom that requires a slight flexibility.

Type: Article
Title: Towards a thoracic conductive phantom for EIT
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.medengphy.2019.10.008
Publisher version: https://doi.org/10.1016/j.medengphy.2019.10.008
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: 3D printing, Conductive, EIT, Flexible, Phantom
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10091556
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