Multi-sensor system for simultaneous ultra-low-field MRI and MEG

Magnetoencephalography (MEG) and magnetic resonance imaging at ultra-low fields (ULF MRI) are two methods based on the ability of SQUID (superconducting quantum interference device) sensors to detect femtotesla magnetic fields. Combination of these methods will allow simultaneous functional (MEG) an...

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Bibliographic Details
Published in:arXiv.org 2006-12
Main Authors: Zotev, V S, Matlachov, A N, Volegov, P L, Sandin, H J, Espy, M A, Mosher, J C, Urbaitis, A V, Newman, S G, Kraus, R H
Format: Article
Language:English
Subjects:
Brain
Magnetic resonance imaging
Magnetoencephalography
Medical imaging
NMR
Nuclear magnetic resonance
Superconducting quantum interference devices
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Summary:Magnetoencephalography (MEG) and magnetic resonance imaging at ultra-low fields (ULF MRI) are two methods based on the ability of SQUID (superconducting quantum interference device) sensors to detect femtotesla magnetic fields. Combination of these methods will allow simultaneous functional (MEG) and structural (ULF MRI) imaging of the human brain. In this paper, we report the first implementation of a multi-sensor SQUID system designed for both MEG and ULF MRI. We present a multi-channel image of a human hand obtained at 46 microtesla field, as well as results of auditory MEG measurements with the new system.
ISSN:2331-8422
DOI:10.48550/arxiv.0612048