Electrohysterogram Signals from Patients with Threatened Preterm Labor: Concentric Ring Electrode Vs Disk Electrode Recordings

Javier Mas-Cabo, Yiyao Ye-Lin, Carlos Benalcazar-Parra, José Alberola-Rubio, Alfredo Perales, Javier Garcia-Casado, Gema Prats-Boluda

Abstract

Recording of electrohysterogram (EHG) has emerged as a non-invasive method for monitoring uterine dynamics during pregnancy. Usually EHG is picked up using conventional disk electrodes placed on the abdominal surface resulting in a limited spatial resolution due to the blurring effect of the volume conductor. In this respect, concentric ring electrodes have been proposed to pick up uterine myoelectrical activity in term patients so as to improve spatial resolution and to reduce physiological interferences embedded in these records. The aim of the present work is to check the feasibility of recording EHG signals using concentric ring electrodes (BC-EHG) in patients with threatened preterm labor and to compare their capability to discriminate true preterm labor from false alarms with that of conventional EHG bipolar recording. For this purpose, 50 sessions with simultaneous EHG recordings with conventional disk electrodes and concentric ring electrodes were conducted in 26 patients. Compared to conventional bipolar EHG recording, the BC-EHG presents smaller amplitude and similar spectral characteristics. Statistically significant differences between women who delivered preterm and those that delivered at term were found for both the average peak-peak amplitude and the dominant frequency in the frequency range 0.2-1 Hz from BC-EHG recordings. Nonetheless no EHG parameter from simultaneous conventional bipolar recording showed statistically significant differences. These results suggest superior performance of BC-EHG recordings in patients with threatened preterm labor for discriminating true preterm labor from term labor.

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Paper Citation


in Harvard Style

Mas-Cabo J., Ye-Lin Y., Benalcazar-Parra C., Alberola-Rubio J., Perales A., Garcia-Casado J. and Prats-Boluda G. (2017). Electrohysterogram Signals from Patients with Threatened Preterm Labor: Concentric Ring Electrode Vs Disk Electrode Recordings . In Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 4: BIOSIGNALS, (BIOSTEC 2017) ISBN 978-989-758-212-7, pages 78-83. DOI: 10.5220/0006155000780083


in Bibtex Style

@conference{biosignals17,
author={Javier Mas-Cabo and Yiyao Ye-Lin and Carlos Benalcazar-Parra and José Alberola-Rubio and Alfredo Perales and Javier Garcia-Casado and Gema Prats-Boluda},
title={Electrohysterogram Signals from Patients with Threatened Preterm Labor: Concentric Ring Electrode Vs Disk Electrode Recordings},
booktitle={Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 4: BIOSIGNALS, (BIOSTEC 2017)},
year={2017},
pages={78-83},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006155000780083},
isbn={978-989-758-212-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 10th International Joint Conference on Biomedical Engineering Systems and Technologies - Volume 4: BIOSIGNALS, (BIOSTEC 2017)
TI - Electrohysterogram Signals from Patients with Threatened Preterm Labor: Concentric Ring Electrode Vs Disk Electrode Recordings
SN - 978-989-758-212-7
AU - Mas-Cabo J.
AU - Ye-Lin Y.
AU - Benalcazar-Parra C.
AU - Alberola-Rubio J.
AU - Perales A.
AU - Garcia-Casado J.
AU - Prats-Boluda G.
PY - 2017
SP - 78
EP - 83
DO - 10.5220/0006155000780083