Evidence map›Paper›PMID 37240486›Full record

ArticleJournal of clinical medicine2023

A Small Scale Optically Pumped Fetal Magnetocardiography System.

David Wurm, Peter Ewert, Peter Fierlinger, Ronald T Wakai, Verena Wallner, Lena Wunderl, Annette Wacker-Gußmann

Open access · goldAbstract read
In one paragraph

Article in Journal of clinical medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.6field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed, 8 citations in OpenAlex.

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  7. The magnetocardiogram.Biophysics reviews · 2024
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

David WurmChair E66, School of Natural Sciences, Technical University of Munich, 80636 Munich, Germany.ORCID 0000-0003-1287-7427
Peter EwertDepartment of Congenital Heart Disease and Pediatric Cardiology, German Heart Center, 80636 Munich, Germany.ORCID 0000-0003-0253-1190
Peter FierlingerChair E66, School of Natural Sciences, Technical University of Munich, 80636 Munich, Germany.
Ronald T WakaiDepartment of Medical Physics, University of Wisconsin Madison, Madison, WI 53706, USA.ORCID 0000-0002-9894-0484
Verena WallnerChair E66, School of Natural Sciences, Technical University of Munich, 80636 Munich, Germany.ORCID 0009-0002-6122-705X
Lena WunderlChair E66, School of Natural Sciences, Technical University of Munich, 80636 Munich, Germany.
Annette Wacker-GußmannDepartment of Congenital Heart Disease and Pediatric Cardiology, German Heart Center, 80636 Munich, Germany.
Technical University of Munich · DEDeutsches Herzzentrum München · DEUniversity of Wisconsin–Madison · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionFetal magnetocardiography (fMCG) is considered the best technique for diagnosis of fetal arrhythmia. It is superior to more widely used methods such as fetal, fetal electrocardiography, and cardiotocography for evaluation of fetal rhythm. The combination of fMCG and fetal echocardiography can provide a more comprehensive evaluation of fetal cardiac rhythm and function than is currently possible. In this study, we demonstrate a practical fMCG system based on optically pumped magnetometers (OPMs).

methodsSeven pregnant women with uncomplicated pregnancies underwent fMCG at 26-36 weeks' gestation. The recordings were made using an OPM-based fMCG system and a person-sized magnetic shield. The shield is much smaller than a shielded room and provides easy access with a large opening that allows the pregnant woman to lie comfortably in a prone position.

resultsThe data show no significant loss of quality compared to data acquired in a shielded room. Measurements of standard cardiac time intervals yielded the following results: PR = 104 ± 6 ms, QRS = 52.6 ± 1.5 ms, and QTc = 387 ± 19 ms. These results are compatible with those from prior studies performed using superconducting quantum interference device (SQUID) fMCG systems.

conclusionsTo our knowledge, this is the first European fMCG device with OPM technology commissioned for basic research in a pediatric cardiology unit. We demonstrated a patient-friendly, comfortable, and open fMCG system. The data yielded consistent cardiac intervals, measured from time-averaged waveforms, compatible with published SQUID and OPM data. This is an important step toward making the method widely accessible.

Indexed as

cardiac time intervalsfetal arrhythmiafMCGlow costMSROPMperson-size shields

Identifiers

PMID37240486
PMCPMC10219566
OpenAlexW4378515023

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.