loading
Documents

Research.Publish.Connect.

Paper

Paper Unlock

Authors: J. A. L. Marques 1 ; P. C. Cortez 2 ; J. P. V. Madeiro 2 and F. S. Schlindwein 3

Affiliations: 1 University Lusiada of Angola, Angola ; 2 Federal University of Ceará, Brazil ; 3 University of Leicester, United Kingdom

ISBN: 978-989-8425-89-8

Keyword(s): Fetal Heart Rate, Sample Entropy, Nonlinear Analysis.

Related Ontology Subjects/Areas/Topics: Applications and Services ; Biomedical Engineering ; Biomedical Signal Processing ; Cardiovascular Signals ; Computer Vision, Visualization and Computer Graphics ; Medical Image Detection, Acquisition, Analysis and Processing ; Physiological Processes and Bio-Signal Modeling, Non-Linear Dynamics

Abstract: The complex system of mother and foetus interacting during pregnancy contains both dependent and independent subsystems and it is unlikely that it can be studied using only linear techniques. Considering this, the conventional medical analysis of Fetal Heart Rate (FHR) based on Cardiotocography (CTG) traces can be expanded considering nonlinear approaches. This work presents the use of Sample Entropy (SampEn) as a measure of system complexity, using a 5 minutes window of FHR signal (1200 samples), using values for parameters m and r based on literature to analyse the signal complexity behaviour in time. The database is comprised of 22 pre-classified intrapartum exams, expected to have a high degree of time domain dynamics. The analysis shows that severe FHR decelerations result in small values of SampEn, reflecting a low level of complexity. On the other hand, a set of high level transient FHR accelerations also causes the same effect. The occurrences of repetitive patterns (similar t o sinusoidal waves, which are pathological) cause a drop of SampEn values. The results encourage us to consider SampEn as one viable parameter for nonlinear FHR signal analysis. (More)

PDF ImageFull Text

Download
CC BY-NC-ND 4.0

Sign In Guest: Register as new SciTePress user now for free.

Sign In SciTePress user: please login.

PDF ImageMy Papers

You are not signed in, therefore limits apply to your IP address 3.227.233.55

In the current month:
Recent papers: 100 available of 100 total
2+ years older papers: 200 available of 200 total

Paper citation in several formats:
A. L. Marques, J.; Cortez, P.; Madeiro, J. and Schlindwein, F. (2012). NON-LINEAR ANALYSIS OF FETAL HEART RATE IN CARDIOTOCOGRAPHY USING SAMPLE ENTROPY.In Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2012) ISBN 978-989-8425-89-8, pages 244-248. DOI: 10.5220/0003776502440248

@conference{biosignals12,
author={J. A. L. Marques. and P. C. Cortez. and J. P. V. Madeiro. and F. S. Schlindwein.},
title={NON-LINEAR ANALYSIS OF FETAL HEART RATE IN CARDIOTOCOGRAPHY USING SAMPLE ENTROPY},
booktitle={Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2012)},
year={2012},
pages={244-248},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003776502440248},
isbn={978-989-8425-89-8},
}

TY - CONF

JO - Proceedings of the International Conference on Bio-inspired Systems and Signal Processing - Volume 1: BIOSIGNALS, (BIOSTEC 2012)
TI - NON-LINEAR ANALYSIS OF FETAL HEART RATE IN CARDIOTOCOGRAPHY USING SAMPLE ENTROPY
SN - 978-989-8425-89-8
AU - A. L. Marques, J.
AU - Cortez, P.
AU - Madeiro, J.
AU - Schlindwein, F.
PY - 2012
SP - 244
EP - 248
DO - 10.5220/0003776502440248

Login or register to post comments.

Comments on this Paper: Be the first to review this paper.