ArticleSensors (Basel, Switzerland)2022
Simulation Study of Different OPM-MEG Measurement Components.
Article in Sensors (Basel, Switzerland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed, 25 citations in OpenAlex.
- Optically pumped magnetometers enhance neuroimaging performance-An EEG, OPM, and SQUID-MEG study.iScience · 2026Article
- Optimizing OPM-MEG Sensor Layouts Using the Sequential Selection Algorithm with Simulated Sources and Individual Anatomy.Sensors (Basel, Switzerland) · 2026Article
- Automatic Removal of Physiological Artifacts in OPM-MEG: A Framework of Channel Attention Mechanism Based on Magnetic Reference Signal.Biosensors · 2025Article
- Optimization and Analysis of Tangential Component Orientations in OPM-MEG Sensor Array.Bioengineering (Basel, Switzerland) · 2025Article
- Superconducting Quantum Magnetometers for Brain Investigations.Sensors (Basel, Switzerland) · 2025Review
- Optimization of OPM-MEG Layouts with a Limited Number of Sensors.Sensors (Basel, Switzerland) · 2025Article
- A fully integrated whole-head helium OPM MEG: a performance assessment compared to cryogenic MEG.Frontiers in medical technology · 2025Article
- Optimal configuration of on-scalp OPMs with fixed channel counts.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- An optically pumped magnetic gradiometer for the detection of human biomagnetism.Quantum science and technology · 2024Article
- Yttrium-Iron Garnet Magnetometer in MEG: Advance towards Multi-Channel Arrays.Sensors (Basel, Switzerland) · 2023Article
- Article
- A 90-channel triaxial magnetoencephalography system using optically pumped magnetometers.Annals of the New York Academy of Sciences · 2022Article
- Magnetoencephalography with optically pumped magnetometers (OPM-MEG): the next generation of functional neuroimaging.Trends in neurosciences · 2022Review
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 2 countries.
Funding
Abstract
Magnetoencephalography (MEG) is a neuroimaging technique that measures the magnetic fields of the brain outside of the head. In the past, the most suitable magnetometer for MEG was the superconducting quantum interference device (SQUID), but in recent years, a new type has also been used, the optically pumped magnetometer (OPM). OPMs can be configured to measure multiple directions of magnetic field simultaneously. This work explored whether combining multiple directions of the magnetic field lowers the source localization error of brain sources under various conditions of noise. We simulated dipolar-like sources for multiple configurations of both SQUID- and OPM-MEG systems. To test the performance of a given layout, we calculated the average signal-to-noise ratio and the root mean square of the simulated magnetic field; furthermore, we evaluated the performance of the dipole fit. The results showed that the field direction normal to the scalp yields a higher signal-to-noise ratio and that ambient noise has a much lower impact on its localization error; therefore, this is the optimal choice for source localization when only one direction of magnetic field can be measured. For a low number of OPMs, combining multiple field directions greatly improves the source localization results. Lastly, we showed that MEG sensors that can be placed closer to the brain are more suitable for localizing deeper sources.
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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.