<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The quality of an impedance cardiography (ICG) signal critically impacts the calculation of hemodynamic parameters. These calculations depend solely on the identification of ICG characteristic points on the ABEXYOZ complex. Unfortunately, contrary to the relatively constant morphology of the PQRST complex in electrocardiography, the waveform morphology of ICG data is far from stationary, which causes difficulties in the accuracy of the automated detection of characteristic ICG points. This study evaluated ICG recordings obtained from 10 volunteers. The results indicate that there are several different waveforms for the ABEXYOZ complex; there are up to five clearly distinct waveforms for the ABEXYOZ complex in addition to those that are typically reported. The differences between waveform types increased the difficulty of detecting ICG points. To accurately detect all ICG points, the ABEXYOZ complex should be analyzed according to the corresponding waveform type.</p></abstract>

The quality of an impedance cardiography (ICG) signal critically impacts the calculation of hemodynamic parameters. These calculations depend solely on the identification of ICG characteristic points on the ABEXYOZ complex. Unfortunately, contrary to the relatively constant morphology of the PQRST complex in electrocardiography, the waveform morphology of ICG data is far from stationary, which causes difficulties in the accuracy of the automated detection of characteristic ICG points. This study evaluated ICG recordings obtained from 10 volunteers. The results indicate that there are several different waveforms for the ABEXYOZ complex; there are up to five clearly distinct waveforms for the ABEXYOZ complex in addition to those that are typically reported. The differences between waveform types increased the difficulty of detecting ICG points. To accurately detect all ICG points, the ABEXYOZ complex should be analyzed according to the corresponding waveform type.

Systematic variability in ICG recordings results in ICG complex subtypes – steps towards the enhancement of ICG characterization

University of Sciences and Technology Houari Boumediene

Journal of Electrical Bioimpedance

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The quality of an impedance cardiography (ICG) signal critically impacts the calculation of hemodynamic parameters. These calculations depend solely on the...

Systematic variability in ICG recordings results in ICG complex subtypes – steps towards the enhancement of ICG characterization

Article Category: Research articles

Published Online: Dec 19, 2018

Page range: 72 - 82

Received: Jul 30, 2018

DOI: https://doi.org/10.2478/joeb-2018-0012

Keywords
bioimpedance, impedance cardiography, dZ/dt signal, ABEXYOZ complex, characteristic points, waveform analysis

© 2018 Sara Benouar, Abdelakram Hafid, Mokhtar Attari, Malika Kedir-Talha, Fernando Seoane published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Systematic variability in ICG recordings results in ICG complex subtypes – steps towards the enhancement of ICG characterization

Article Category: Research articles

Published Online: Dec 19, 2018

Page range: 72 - 82

Received: Jul 30, 2018

DOI: https://doi.org/10.2478/joeb-2018-0012

Keywordsbioimpedance, impedance cardiography, dZ/dt signal, ABEXYOZ complex, characteristic points, waveform analysis

© 2018 Sara Benouar, Abdelakram Hafid, Mokhtar Attari, Malika Kedir-Talha, Fernando Seoane published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
bioimpedance, impedance cardiography, dZ/dt signal, ABEXYOZ complex, characteristic points, waveform analysis