Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

OPM-based fetal magnetocardiography: fetal cardiac time intervals in healthy pregnancies compared to postnatal ECGs.

Archives of gynecology and obstetrics·2026

Same author

Fetal Long QT Syndrome: Case Series and Literature Review With Focus on Multidisciplinary Care Coordination.

Case reports in cardiology·2026

Same author

COSINE-100 full dataset challenges the annual modulation signal of DAMA/LIBRA.

Science advances·2025

Same author

Fetal Conduction Disease and Arrhythmia in Ebstein's Anomaly and Tricuspid Valve Dysplasia Assessed by Fetal Magnetocardiography.

Journal of the American Heart Association·2025

Same author

Greedy Optimization of Sensor Array Geometry for Magnetocardiographic Source Localization.

IEEE transactions on bio-medical engineering·2025

Same author

Fetal T-wave and isovolumetric relaxation time alternans can be identified by fetal echocardiography.

Heart rhythm·2024

Same journal

Gaussian-modulated continuous-variable quantum key distribution over 60 km fiber using an integrated silicon photonic receiver.

Optics letters·2026

Same journal

E2E-OCT: end-to-end joint learning model using optical coherence tomography images for vocal cord leukoplakia diagnosis.

Optics letters·2026

Same journal

Holographic generation of panoramic 3D scenes by concave ellipsoidal mirror reflection.

Optics letters·2026

Same journal

Dual-pilot phase recovery with pair-wise maximum-ratio combining for coherent PONs.

Optics letters·2026

Same journal

Mapping the whispering gallery modes of a CaF<sub>2</sub> disk resonator with half-tapered fibers to estimate the fundamental mode volume.

Optics letters·2026

Same journal

Quantitative estimation of deep-subwavelength scale via dark-field scattering axial energy concentration decay profiles.

Optics letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: May 21, 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

Optical magnetometer array for fetal magnetocardiography.

Robert Wyllie¹, Matthew Kauer, Ronald T Wakai

¹Department of Physics, University of Wisconsin–Madison, 1150 University Avenue, Madison, Wisconsin 53706, USA.

|June 29, 2012

Summary

This summary is machine-generated.

We developed novel atomic magnetometers for detecting fetal magnetocardiography (fMCG). These sensors show promise for non-invasive fetal heart monitoring by measuring weak magnetic fields.

More Related Videos

Murine Fetal Echocardiography

Murine Fetal Echocardiography

Published on: February 15, 2013

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound (30/45MHZ) System

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound (30/45MHZ) System

Published on: May 5, 2018

Related Experiment Videos

Last Updated: May 21, 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

Murine Fetal Echocardiography

Murine Fetal Echocardiography

Published on: February 15, 2013

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound (30/45MHZ) System

Fetal Mouse Cardiovascular Imaging Using a High-frequency Ultrasound (30/45MHZ) System

Published on: May 5, 2018

Area of Science:

Biophysics
Medical Instrumentation
Atomic Physics

Background:

Fetal magnetocardiography (fMCG) requires highly sensitive magnetometers to detect weak magnetic fields from the fetal heart.
Existing technologies like SQUIDs have limitations in terms of cooling requirements and cost.

Purpose of the Study:

To develop and evaluate spin-exchange-relaxation-free (SERF) optical magnetometers for fetal magnetocardiography (fMCG) detection.
To demonstrate the feasibility of using atomic magnetometers for non-invasive fetal heart monitoring.

Main Methods:

Designed an array of SERF optical magnetometers with a unique configuration of optical pumping and pump-free regions.
Utilized spin-polarized atom diffusion and precession for magnetic field detection via a probe laser.
Implemented a gradiometric configuration with four magnetometers and feedback control to mitigate magnetic noise up to 200 Hz.

Main Results:

Successfully configured an array of SERF magnetometers for gradiometry.
Achieved noise reduction using a feedback system up to 200 Hz.
Presented the first-ever fMCG measurements obtained using an atomic magnetometer.

Conclusions:

SERF optical magnetometers are a viable technology for detecting fMCG signals.
This approach offers a promising pathway for non-invasive fetal cardiac diagnostics.
Further development could lead to more sensitive and practical fetal monitoring systems.