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BY-NC-ND 4.0 license Open Access Published by De Gruyter September 7, 2017

Analysis of the foetal heart rate in cardiotocographic recordings through a progressive characterization of decelerations

  • Patricio Fuentealba EMAIL logo , Alfredo Illanes and Frank Ortmeier


The main purpose of this work is to propose a new method for characterization and visualization of FHR deceleration episodes in terms of their depth, length and location. This is performed through the estimation of a progressive baseline computed using a median filter allowing to identify and track the evolution of decelerations in cardiotocographic CTG recordings. The proposed method has been analysed using three representative cases of normal and pathological CTG recordings extracted from the CTU-UHB database freely available on the PhysioNet Website. Results show that both the progressive baseline and the parameterized deceleration episodes can describe different time-variant behaviour, whose characteristics and progression can help the observer to discriminate between normal and pathological FHR signal patterns. This opens perspectives for classification of non-reassuring CTG recordings as a sign of foetal acidemia.

Published Online: 2017-09-07

©2017 Patricio Fuentealba et al., published by De Gruyter

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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