Respiration monitoring by Electrical Bioimpedance (EBI) Technique in a group of healthy males. Calibration equations

Several research groups have proposed the electrical impedance tomography (EIT) in order to analyse lung ventilation. With the use of 16 electrodes, the EIT is capable to obtain a set of transversal section images of thorax. In previous works, we have obtained an alternating signal in terms of imped...

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Bibliographic Details
Published in:Journal of physics. Conference series 2017-01, Vol.792 (1), p.12048
Main Authors: Balleza, M, Vargas, M, Kashina, S, Huerta, M R, Delgadillo, I, Moreno, G
Format: Article
Language:English
Subjects:
Calibration
Electrical impedance
Lungs
Males
Mathematical analysis
Physics
Respiration
Thorax
Vectors (mathematics)
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Summary:Several research groups have proposed the electrical impedance tomography (EIT) in order to analyse lung ventilation. With the use of 16 electrodes, the EIT is capable to obtain a set of transversal section images of thorax. In previous works, we have obtained an alternating signal in terms of impedance corresponding to respiration from EIT images. Then, in order to transform those impedance changes into a measurable volume signal a set of calibration equations has been obtained. However, EIT technique is still expensive to attend outpatients in basics hospitals. For that reason, we propose the use of electrical bioimpedance (EBI) technique to monitor respiration behaviour. The aim of this study was to obtain a set of calibration equations to transform EBI impedance changes determined at 4 different frequencies into a measurable volume signal. In this study a group of 8 healthy males was assessed. From obtained results, a high mathematical adjustment in the group calibrations equations was evidenced. Then, the volume determinations obtained by EBI were compared with those obtained by our gold standard. Therefore, despite EBI does not provide a complete information about impedance vectors of lung compared with EIT, it is possible to monitor the respiration.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/792/1/012048