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Fetal Circulation

Fetal Circulation

Fetal circulation is a unique system that facilitates the exchange of gases, nutrients, and waste products between the developing fetus and the mother. This intricate process takes place through a special organ called the placenta.
Two umbilical arteries transport blood from the fetus to the placenta. At the placenta, the blood absorbs oxygen and nutrients while simultaneously eliminating waste products. This oxygen-enriched and nutrient-rich blood then returns to the fetus through one...

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Related Experiment Video

Updated: May 25, 2026

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation

Published on: January 7, 2021

Accelerometer-based fetal movement detection.

M Mesbah¹, M S Khlif, C East

¹Centre for Clinical Research, The University of Queensland, Brisbane, Australia. m.mesbah@uq.edu.au

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference

|January 19, 2012

Summary

This summary is machine-generated.

This study validates an ambulatory fetal activity monitor (AFAM) using ultrasound. The accelerometer-based system accurately detects fetal movements, paving the way for objective monitoring of fetal wellbeing.

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Area of Science:

Obstetrics and Gynecology
Biomedical Engineering
Fetal Medicine

Background:

Fetal wellbeing monitoring is crucial in obstetrics.
Fetal movement is linked to developmental outcomes.
Objective fetal activity monitoring is needed.

Purpose of the Study:

To evaluate the performance of an ambulatory fetal activity monitor (AFAM).
To assess accelerometer-based detection of fetal movements against ultrasound.
To establish a foundation for automated fetal movement analysis.

Main Methods:

An ambulatory accelerometer-based fetal activity monitor (AFAM) was developed.
24-hour fetal movement data was recorded.
Accelerometer data was compared against real-time ultrasound imaging (gold standard).

Main Results:

The accelerometer-based fetal activity monitor demonstrated effective detection of fetal movements.
Initial performance analysis shows promising correlation with ultrasound findings.
Quantitative characterization of fetal movements is feasible with AFAM.

Conclusions:

The ambulatory fetal activity monitor (AFAM) shows potential for accurate fetal movement detection.
This technology can aid in objective and continuous fetal wellbeing assessment.
Further development of signal processing methods is warranted for automated analysis.