Multi-Channel SQUID System for MEG and Ultra-Low-Field MRI

IEEETrans.Appl.Supercond.17:839-842,2007 A seven-channel system capable of performing both magnetoencephalography (MEG) and ultra-low-field magnetic resonance imaging (ULF MRI) is described. The system consists of seven second-order SQUID gradiometers with 37 mm diameter and 60 mm baseline, having m...

Full description

Saved in:
Bibliographic Details
Main Authors Zotev, Vadim S, Matlachov, Andrei N, Volegov, Petr L, Sandin, Henrik J, Espy, Michelle A, Mosher, John C, Urbaitis, Algis V, Newman, Shaun G, KrausJr, Robert H
Format Journal Article
LanguageEnglish
Published 29.11.2006
Subjects
Physics - Instrumentation and Detectors
Physics - Medical Physics
Online AccessGet full text

Cover

More Information
Summary:IEEETrans.Appl.Supercond.17:839-842,2007 A seven-channel system capable of performing both magnetoencephalography (MEG) and ultra-low-field magnetic resonance imaging (ULF MRI) is described. The system consists of seven second-order SQUID gradiometers with 37 mm diameter and 60 mm baseline, having magnetic field resolution of 1.2-2.8 fT/rtHz. It also includes four sets of coils for 2-D Fourier imaging with pre-polarization. The system's MEG performance was demonstrated by measurements of auditory evoked response. The system was also used to obtain a multi-channel 2-D image of a whole human hand at the measurement field of 46 microtesla with 3 by 3 mm resolution.
DOI:10.48550/arxiv.physics/0611290