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Fetal Movement Counting Using Optical Fibre Sensors

1
Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham NG11 8PR, UK
2
Optics and Photonics Group, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
3
Department of Obstetrics and Gynecology, University of Nottingham, Nottingham NG7 2UH, UK
4
School of Art and Design, Nottingham Trent University, Nottingham NG11 8PR, UK
*
Author to whom correspondence should be addressed.
Sensors 2021, 21(1), 48; https://doi.org/10.3390/s21010048
Received: 15 October 2020 / Revised: 10 December 2020 / Accepted: 18 December 2020 / Published: 24 December 2020
(This article belongs to the Section Optical Sensors)
Daily fetal movement counting based on maternal perception is widely deployed to monitor fetal wellbeing. However, the counting performed by the mother is prone to errors for various reasons. There are limited devices on the market that can provide reliable and automatic counting. This paper presents a prototype of a novel fetal movement monitoring device based on fibre Bragg grating sensors. Deformation of the skin caused by a fetal movement can lead to a change of the strain and stress on the optical fibre sensors, therefore can induce distortions to the breathing pattern of the mother. In the study data was gathered by the sensors through strain measurement and was post-processed using independent component analysis (ICA) and high-pass filtering to show the instances of the fetal movements. Information gathered during user trials with the prototype suggests that the system detects significantly higher numbers of fetus movements than that observed based on the mother’s perception. Among the various techniques available for fetal movement monitoring, fibre optic sensing provides many advantages including multiplex capability, flexibility and minimal size, making the concept an attractive solution for reliable monitoring of antenatal fetal movements. View Full-Text
Keywords: fibre Bragg grating; optical fibre sensing; fetal movement monitoring; kick counting fibre Bragg grating; optical fibre sensing; fetal movement monitoring; kick counting
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MDPI and ACS Style

Abeywardena, C.L.; Vanheusden, F.J.; Walker, K.F.; Arm, R.; Zhang, Q. Fetal Movement Counting Using Optical Fibre Sensors. Sensors 2021, 21, 48. https://doi.org/10.3390/s21010048

AMA Style

Abeywardena CL, Vanheusden FJ, Walker KF, Arm R, Zhang Q. Fetal Movement Counting Using Optical Fibre Sensors. Sensors. 2021; 21(1):48. https://doi.org/10.3390/s21010048

Chicago/Turabian Style

Abeywardena, Chalani L.; Vanheusden, Frederique J.; Walker, Kate F.; Arm, Richard; Zhang, Qimei. 2021. "Fetal Movement Counting Using Optical Fibre Sensors" Sensors 21, no. 1: 48. https://doi.org/10.3390/s21010048

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