A portable bioimpedance measurement system based on Red Pitaya for monitoring and detecting abnormalities in the gastrointestinal tract

A Ruiz-Vargas, John Arkwright, Antoni Ivorra

Research output: Contribution to conferencePaperpeer-review

9 Citations (Scopus)

Abstract

We present a mobile and low cost 4-Terminal bioimpedance measurement system, consisting of a Red Pitaya board and a front-end, for understanding gastrointestinal physiology and exploring new applications for bioimpedance spectroscopy in gastroenterology. System accuracy was evaluated with a set of impedance standards from 1 ohm to 1 Mohm and an equivalent circuit model of a generic biological tissue within a frequency range from 10 Hz to 1 MHz. The system achieved accuracies of < 2% and standard deviation in magnitude and phase of <0.02% and <0.47% respectively. The system was tested on an excised section of distal colon of a Guinea-pig and showed two distinct dispersion regions.

Original languageEnglish
Pages150-154
Number of pages5
DOIs
Publication statusPublished - 1 Jan 2016
EventIEEE EMBS Conference on Biomedical Engineering and Sciences -
Duration: 3 Dec 2018 → …

Conference

ConferenceIEEE EMBS Conference on Biomedical Engineering and Sciences
Period3/12/18 → …

Keywords

  • Auto-balancing bridge method
  • Bioimpedance measurement system
  • Gastroenterology

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