Fetal heart rate monitoring device using condenser microphone sensor: Validation and comparison to standard devices

Technology and Health Care : Official Journal of the European Society for Engineering and Medicine
Husna Azyan Binti AhmadM B Malarvili

Abstract

Fetal heart rate (FHR) monitoring device is highly demanded to assess the fetus health condition in home environments. Conventional standard devices such as ultrasonography and cardiotocography are expensive, bulky and uncomfortable and consequently not suitable for long-term monitoring. Herein, we report a device that can be used to measure fetal heart rate in clinical and home environments. The proposed device measures and displays the FHR on a screen liquid crystal display (LCD). The device consists of hardware that comprises condenser microphone sensor, signal conditioning, microcontroller and LCD, and software that involves the algorithm used for processing the conditioned fetal heart signal prior to FHR display. The device's performance is validated based on analysis of variance (ANOVA) test. FHR data was recorded from 22 pregnant women during the 17th to 37th week of gestation using the developed device and two standard devices; AngelSounds and Electronic Stethoscope. The results show that F-value (1.5) is less than F

References

Sep 1, 1993·IEEE Transactions on Bio-medical Engineering·A J ZuckerwarD A Baker
Dec 23, 2004·Prenatal Diagnosis·Torvid Kiserud, Ganesh Acharya
Mar 29, 2006·Archives of Internal Medicine·Gregory M MarcusAndrew D Michaels
May 3, 2013·Obstetrics and Gynecology·Cande V AnanthAnthony M Vintzileos
Nov 13, 2014·Journal of Midwifery & Women's Health
Sep 21, 2017·Journal of Breath Research·Om Prakash SinghM B Malarvili

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Citations

Jan 26, 2021·Technology and Health Care : Official Journal of the European Society for Engineering and Medicine·Kau Pui ChiaJagannathan Madhanagopal

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