An integrated full-head OPM-MEG system based on 128 zero-field sensors
Compact optically-pumped magnetometers (OPMs) are now commercially available with noise floors reaching 10 fT/Hz1/2. However, to be used effectively for magnetoencephalography (MEG), dense arrays of these sensors are required to operate as an integrated turn-key system. In this study, we present the...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2023-06-01
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| Series: | Frontiers in Neuroscience |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fnins.2023.1190310/full |
| _version_ | 1797804538795655168 |
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| author | Orang Alem Orang Alem Orang Alem K. Jeramy Hughes K. Jeramy Hughes K. Jeramy Hughes Isabelle Buard Teresa P. Cheung Teresa P. Cheung Teresa P. Cheung Tyler Maydew Andreas Griesshammer Kendall Holloway Aaron Park Vanessa Lechuga Collin Coolidge Marja Gerginov Erik Quigg Alexander Seames Eugene Kronberg Peter Teale Svenja Knappe Svenja Knappe Svenja Knappe |
| author_facet | Orang Alem Orang Alem Orang Alem K. Jeramy Hughes K. Jeramy Hughes K. Jeramy Hughes Isabelle Buard Teresa P. Cheung Teresa P. Cheung Teresa P. Cheung Tyler Maydew Andreas Griesshammer Kendall Holloway Aaron Park Vanessa Lechuga Collin Coolidge Marja Gerginov Erik Quigg Alexander Seames Eugene Kronberg Peter Teale Svenja Knappe Svenja Knappe Svenja Knappe |
| author_sort | Orang Alem |
| collection | DOAJ |
| description | Compact optically-pumped magnetometers (OPMs) are now commercially available with noise floors reaching 10 fT/Hz1/2. However, to be used effectively for magnetoencephalography (MEG), dense arrays of these sensors are required to operate as an integrated turn-key system. In this study, we present the HEDscan, a 128-sensor OPM MEG system by FieldLine Medical, and evaluate its sensor performance with regard to bandwidth, linearity, and crosstalk. We report results from cross-validation studies with conventional cryogenic MEG, the Magnes 3,600 WH Biomagnetometer by 4-D Neuroimaging. Our results show high signal amplitudes captured by the OPM-MEG system during a standard auditory paradigm, where short tones at 1000 Hz were presented to the left ear of six healthy adult volunteers. We validate these findings through an event-related beamformer analysis, which is in line with existing literature results. |
| first_indexed | 2024-03-13T05:38:41Z |
| format | Article |
| id | doaj.art-89defaca18a44938b1c6daa6e372a509 |
| institution | Directory Open Access Journal |
| issn | 1662-453X |
| language | English |
| last_indexed | 2024-03-13T05:38:41Z |
| publishDate | 2023-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Neuroscience |
| spelling | doaj.art-89defaca18a44938b1c6daa6e372a5092023-06-14T05:08:30ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2023-06-011710.3389/fnins.2023.11903101190310An integrated full-head OPM-MEG system based on 128 zero-field sensorsOrang Alem0Orang Alem1Orang Alem2K. Jeramy Hughes3K. Jeramy Hughes4K. Jeramy Hughes5Isabelle Buard6Teresa P. Cheung7Teresa P. Cheung8Teresa P. Cheung9Tyler Maydew10Andreas Griesshammer11Kendall Holloway12Aaron Park13Vanessa Lechuga14Collin Coolidge15Marja Gerginov16Erik Quigg17Alexander Seames18Eugene Kronberg19Peter Teale20Svenja Knappe21Svenja Knappe22Svenja Knappe23FieldLine Medical, Boulder, CO, United StatesPaul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO, United StatesFieldLine Industries, Boulder, CO, United StatesFieldLine Medical, Boulder, CO, United StatesPaul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO, United StatesFieldLine Industries, Boulder, CO, United StatesAnschutz Medical Campus, University of Colorado Denver, Denver, CO, United StatesFieldLine Medical, Boulder, CO, United StatesSchool of Engineering, Simon Fraser University, Burnaby, BC, CanadaSurrey Memorial Hospital, Fraser Health Authority, Surrey, BC, CanadaFieldLine Medical, Boulder, CO, United StatesFieldLine Medical, Boulder, CO, United StatesFieldLine Medical, Boulder, CO, United StatesFieldLine Medical, Boulder, CO, United StatesFieldLine Medical, Boulder, CO, United StatesFieldLine Medical, Boulder, CO, United StatesPaul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO, United StatesPaul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO, United StatesAnschutz Medical Campus, University of Colorado Denver, Denver, CO, United StatesAnschutz Medical Campus, University of Colorado Denver, Denver, CO, United StatesAnschutz Medical Campus, University of Colorado Denver, Denver, CO, United StatesFieldLine Medical, Boulder, CO, United StatesPaul M. Rady Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO, United StatesFieldLine Industries, Boulder, CO, United StatesCompact optically-pumped magnetometers (OPMs) are now commercially available with noise floors reaching 10 fT/Hz1/2. However, to be used effectively for magnetoencephalography (MEG), dense arrays of these sensors are required to operate as an integrated turn-key system. In this study, we present the HEDscan, a 128-sensor OPM MEG system by FieldLine Medical, and evaluate its sensor performance with regard to bandwidth, linearity, and crosstalk. We report results from cross-validation studies with conventional cryogenic MEG, the Magnes 3,600 WH Biomagnetometer by 4-D Neuroimaging. Our results show high signal amplitudes captured by the OPM-MEG system during a standard auditory paradigm, where short tones at 1000 Hz were presented to the left ear of six healthy adult volunteers. We validate these findings through an event-related beamformer analysis, which is in line with existing literature results.https://www.frontiersin.org/articles/10.3389/fnins.2023.1190310/fulloptically-pumped magnetometerHEDscanmagnetoencephalographysystem integrationcross-validationOPM |
| spellingShingle | Orang Alem Orang Alem Orang Alem K. Jeramy Hughes K. Jeramy Hughes K. Jeramy Hughes Isabelle Buard Teresa P. Cheung Teresa P. Cheung Teresa P. Cheung Tyler Maydew Andreas Griesshammer Kendall Holloway Aaron Park Vanessa Lechuga Collin Coolidge Marja Gerginov Erik Quigg Alexander Seames Eugene Kronberg Peter Teale Svenja Knappe Svenja Knappe Svenja Knappe An integrated full-head OPM-MEG system based on 128 zero-field sensors Frontiers in Neuroscience optically-pumped magnetometer HEDscan magnetoencephalography system integration cross-validation OPM |
| title | An integrated full-head OPM-MEG system based on 128 zero-field sensors |
| title_full | An integrated full-head OPM-MEG system based on 128 zero-field sensors |
| title_fullStr | An integrated full-head OPM-MEG system based on 128 zero-field sensors |
| title_full_unstemmed | An integrated full-head OPM-MEG system based on 128 zero-field sensors |
| title_short | An integrated full-head OPM-MEG system based on 128 zero-field sensors |
| title_sort | integrated full head opm meg system based on 128 zero field sensors |
| topic | optically-pumped magnetometer HEDscan magnetoencephalography system integration cross-validation OPM |
| url | https://www.frontiersin.org/articles/10.3389/fnins.2023.1190310/full |
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