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The development of a fully wireless, skin-wearable fetal ECG monitoring device
Newkirk, Hannah
Newkirk, Hannah
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2022-04-15
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Newkirk, Hannah. 2022.
The development of a fully wireless, skin-wearable fetal ECG monitoring device -- In Proceedings: 21st Annual Undergraduate Research and Creative Activity Forum. Wichita, KS: Wichita State University, p. 17
Abstract
Early detection of fetal abnormalities during pregnancy and delivery is critical
to reduce fetal mortality, and the most effective way to accomplish it will be ambulatory
fetal electrocardiogram (fECG) monitoring. For example, the most common birth defects,
as well as the leading cause of infant death are congenital heart defects (CHD). CHDs can
be identified by abnormal cardiac events. These abnormal cardiac events are also
indicators of other complications such as fetal hypoxia and intrauterine growth
restriction. Therefore, the long-term goal of this study is to develop an ambulatory
noninvasive fECG monitoring device by discovering optimal electrode placements on the
pregnant abdomen and fabricating skin-wearable electrodes and miniaturized flexible
circuit using microfabrication techniques. To accomplish the goal, however, it is essential
to establish an accurate fECG extraction since abdominal ECGs (aECGs) include
maternal and fetal ECGs, and they often overlap in both the time and frequency domains.
In the current work, a set of realistic aECGs based on several non-stationary events (e.g.,
internal noises, fetal movements, and uterine contractions) were generated using an opensource
FECGSYN toolbox. A number of existing fECG extraction algorithms such as
blind source separation, template subtraction and adaptive methods were evaluated using
the simulated aECG waveforms, and extraction results were compared with the original
fECG waveforms to seek the most effective fECG extraction algorithm for our proposed
device. The next steps of this study will be to collect aECG waveforms from participants
and to find and develop optimal electrode placement.
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Description
Tie for second place of a poster presentation for Natural Sciences and Engineering at the 21st Undergraduate Research and Creative Activity Forum (URCAF) held at the Rhatigan Student Center, Wichita State University, April 15, 2022.
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Wichita State University
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URCAF
v.21
v.21