Non-Invasive Functional-Brain-Imaging with an OPM-based Magnetoencephalography System

Autor: Peter D. D. Schwindt, Amir Borna, Michael P. Weisend, Samu Taulu, Julia M. Stephen, T. R. Carter, Anthony P. Colombo, Yuan-Yu Jau, James R. McKay
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Male
Superconductivity
Diagnostic Radiology
030218 nuclear medicine & medical imaging
law.invention
0302 clinical medicine
law
Medicine and Health Sciences
Image resolution
Physics
Brain Mapping
Fluids
Multidisciplinary
medicine.diagnostic_test
Radiology and Imaging
Magnetism
Brain
Magnetoencephalography
Optical Devices
Signal Processing
Computer-Assisted
Equipment Design
Condensed Matter Physics
Magnetic Resonance Imaging
SQUID
Optical Equipment
Physical Sciences
Quantum interference
Evoked Potentials
Auditory
Vapors
Engineering and Technology
Medicine
Anatomy
Research Article
Adult
States of Matter
Imaging Techniques
Magnetometer
Science
Equipment
Neuroimaging
Research and Analysis Methods
03 medical and health sciences
Diagnostic Medicine
Evoked Potentials
Somatosensory
medicine
Humans
Measurement Equipment
Equivalent current dipole
Scalp
business.industry
Functional Neuroimaging
Lasers
Non invasive
Biology and Life Sciences
Pattern recognition
Magnetometers
Functional Brain Imaging
Magnetic Fields
Artificial intelligence
business
Head
030217 neurology & neurosurgery
Neuroscience
Zdroj: PLoS ONE, Vol 15, Iss 1, p e0227684 (2020)
PLoS ONE
ISSN: 1932-6203
Popis: A non-invasive functional-brain-imaging system based on optically-pumped-magnetometers (OPM) is presented. The OPM-based magnetoencephalography (MEG) system features 20 OPM channels conforming to the subject’s scalp. We have conducted two MEG experiments on three subjects: assessment of somatosensory evoked magnetic field (SEF) and auditory evoked magnetic field (AEF) using our OPM-based MEG system and a commercial MEG system based on superconducting quantum interference devices (SQUIDs). We cross validated the robustness of our system by calculating the distance between the location of the equivalent current dipole (ECD) yielded by our OPM-based MEG system and the ECD location calculated by the commercial SQUID-based MEG system. We achieved sub-centimeter accuracy for both SEF and AEF responses in all three subjects. Due to the proximity (12 mm) of the OPM channels to the scalp, it is anticipated that future OPM-based MEG systems will offer enhanced spatial resolution as they will capture finer spatial features compared to traditional MEG systems employing SQUIDs.
Databáze: OpenAIRE
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