ArticleJournal of the American Heart Association2019
Low-Cost Fetal Magnetocardiography: A Comparison of Superconducting Quantum Interference Device and Optically Pumped Magnetometers.
Article in Journal of the American Heart Association, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03775954 (Fetal Electrophysiologic Abnormalities in High-risk Pregnancies Associated With Fetal Demise), which is not on this map. Cited by 45 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Fetal Electrophysiologic Abnormalities in High-risk Pregnancies Associated With Fetal Demise
Who cites it
45 citing papers in PubMed, 128 citations in OpenAlex.
- Fetal Magnetocardiography Using Optically Pumped Magnetometers: A Literature Review.Biosensors · 2026Review
- Machine Learning-Based Magnetocardiography Model Aids in Diagnosing Non-ST-Segment Elevation Acute Coronary Syndrome in Acute Chest Pain.Balkan medical journal · 2026Article
- Bridging the gap: Translating fetal, infant, and toddler neuroimaging insights into clinical practice.Developmental cognitive neuroscience · 2026Review
- Revolutionizing Pediatric Neurophysiology With Magnetoencephalography.Psychophysiology · 2026Review
- OPM-based fetal magnetocardiography: fetal cardiac time intervals in healthy pregnancies compared to postnatal ECGs.Archives of gynecology and obstetrics · 2026Article
- Fe-Based Nanocrystalline Magnetic Shielding Cylinder with Subfemtotesla-Level Magnetic Noise.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- Optimizing OPM-MEG Sensor Layouts Using the Sequential Selection Algorithm with Simulated Sources and Individual Anatomy.Sensors (Basel, Switzerland) · 2026Article
- Clinical utility of the exercise optically pumped magnetocardiographic stress test in young adults: an exploratory study.American heart journal plus : cardiology research and practice · 2025Article
- Fetal magnetocardiography: Using quantum technologies to define fetal rhythm, conduction, and repolarization prior to birth.American heart journal plus : cardiology research and practice · 2025Article
- Clinical Role of the Noninvasive Abdominal Fetal ECG in the Detection and Monitoring of Fetal Tachycardia.Circulation. Arrhythmia and electrophysiology · 2025Article
- Quantum Cardiovascular Medicine: From Hype to Hope-A Critical Review of Real-World Applications.Journal of clinical medicine · 2025Review
- The Prenatal Diagnosis and Perinatal Management of Congenital Long QT Syndrome: A Comprehensive Literature Review and Recent Updates.Journal of cardiovascular development and disease · 2025Review
- A Novel Adaptive Independent Component Analysis Method for Multi-Channel Optically Pumped Magnetometers' Magnetocardiography Signals.Biosensors · 2025Article
- Compact high-bandwidth single-beam optically-pumped magnetometer for biomagnetic measurement.Biomedical optics express · 2025Article
- Fetal magnetocardiographic recordings with a prototype bed-based array system of optically-pumped magnetometers.Medical engineering & physics · 2024Article
- The magnetocardiogram.Biophysics reviews · 2024Review
- Diagnosis and Management of Fetal Arrhythmias in the Current Era.Journal of cardiovascular development and disease · 2024Review
- Article
- Synchronous recording of magnetocardiographic and electrocardiographic signals.Scientific reports · 2024Article
- Template subtraction based methods for non-invasive fetal electrocardiography extraction.Scientific reports · 2024Article
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
Abstract
Background Fetal magnetocardiography (fMCG) is a highly effective technique for evaluation of fetuses with life-threatening arrhythmia, but its dissemination has been constrained by the high cost and complexity of Superconducting Quantum Interference Device (SQUID) instrumentation. Optically pumped magnetometers (OPMs) are a promising new technology that can replace SQUIDs for many applications. This study compares the performance of an fMCG system, utilizing OPMs operating in a person-sized magnetic shield, to that of a conventional fMCG system, utilizing SQUID magnetometers operating in a magnetically shielded room. Methods and Results fMCG recordings were made in 24 subjects using the SQUID system with the mother lying supine in a magnetically shielded room and the OPM system with the mother lying prone in a person-sized, cylindrical shield. Signal-to-noise ratios of the OPM and SQUID recordings were not statistically different and were adequate for diagnostic purposes with both technologies. Although the environmental noise was higher using the small open-ended shield, this was offset by the higher signal amplitude achieved with prone positioning, which reduced the distance between the fetus and sensors and improved patient comfort. In several subjects, fMCG provided a differential diagnosis that was more precise and/or definitive than was possible with echocardiography alone. Conclusions The OPM-based system was portable, improved patient comfort, and performed as well as the SQUID-based system at a small fraction of the cost. Electrophysiological assessment of fetal rhythm is now practical and will have a major impact on management of fetuses with long QT syndrome and other life-threatening arrhythmias.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.