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

8th International Congress of Engineering Physics

物理学;工业技术

Balleza, M.^1 ; Vargas, M.^1 ; Kashina, S.^2 ; Huerta, M.R.^3 ; Delgadillo, I.^1 ; Moreno, G.^4

Physics Engineering Department, Division of Science and Engineering, Campus León, University of Guanajuato, León, Mexico^1

Department of Chemistry, Division of Natural Sciences, Campus Guanajuato, University of Guanajuato, León, Mexico^2

Applied Sciences to Work Department, Division of Health Sciences, Campus León, University of Guanajuato, León, Mexico^3

Engineering Department, Universidad Iberoamericana, Campus León, Mexico^4

关键词: Calibration equations;    Complete information;    Different frequency;    Electrical bio-impedance;    Electrical impe dance tomography (EIT);    Lung ventilation;    Respiration monitoring;    Volume determination;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/792/1/012048/pdf
DOI  :  10.1088/1742-6596/792/1/012048

学科分类：工业工程学

来源: IOP

【 摘 要 】

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.