Feasibility of magnetomyography with optically pumped magnetometers in a mobile magnetic shield.
Biomagnetism
FEM simulations
Magnetic shields
Non-invasive muscle measurements
QuSpin QZFM Gen. 3
Twinleaf MS-2
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
16 Aug 2024
16 Aug 2024
Historique:
received:
02
05
2024
accepted:
09
08
2024
medline:
16
8
2024
pubmed:
16
8
2024
entrez:
15
8
2024
Statut:
epublish
Résumé
While magnetomyography (MMG) using optically pumped magnetometers (OPMs) is a promising method for non-invasive investigation of the neuromuscular system, it has almost exclusively been performed in magnetically shielded rooms (MSRs) to date. MSRs provide extraordinary conditions for biomagnetic measurements but limit the widespread adoption of measurement methods due to high costs and extensive infrastructure. In this work, we address this issue by exploring the feasibility of mobile OPM-MMG in a setup of commercially available components. From field mapping and simulations, we find that the employed zero-field OPM can operate within a large region of the mobile shield, beyond which residual magnetic fields and perturbations become increasingly intolerable. Moreover, with digital filtering and moderate averaging a signal quality comparable to that in a heavily shielded MSR is attained. These findings facilitate practical and cost-effective implementations of OPM-MMG systems in clinical practice and research.
Identifiants
pubmed: 39147875
doi: 10.1038/s41598-024-69829-y
pii: 10.1038/s41598-024-69829-y
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
18960Subventions
Organisme : Deutsches Zentrum für Luft- und Raumfahrt
ID : DLR 50WM2168
Informations de copyright
© 2024. The Author(s).
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