Multi-channel SQUID system for MEG and ultra-low-field MRI

被引：52

作者：

Zotev, Vadim S. ^{[1
]}

Matlachov, Andrei N. ^{[1
]}

Volegov, Petr L. ^{[1
]}

Sandin, Henrik J. ^{[1
]}

Espy, Michelle A. ^{[1
]}

Mosher, John C. ^{[1
]}

Urbaitis, Algis V. ^{[1
]}

Newman, Shaun G. ^{[1
]}

Kraus, Robert H., Jr. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Grp Appl Modern Phys, Los Alamos, NM 87545 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2007年 / 17卷 / 02期

关键词：

biomagnetism; MEG; SQUID; ULF MRI;

D O I：

10.1109/TASC.2007.898198

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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 nun diameter and 60 mm baseline, having magnetic field resolution of 1.2-2.8fT/root Hz. 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.

引用

页码：839 / 842

页数：4

共 13 条

[1] Co-registration of magnetoencephalography with magnetic resonance imaging using bite-bar-based fiducials and surface-matching [J].

Adjamian, P ;

Barnes, GR ;

Hillebrand, A ;

Holliday, IE ;

Singh, KD ;

Furlong, PL ;

Harrington, E ;

Barclay, CW ;

Route, PJG .

CLINICAL NEUROPHYSIOLOGY, 2004, 115 (03) :691-698

[2]

CLARKE J, Patent No. 6885192

[3]

*CRY CO LTD, LH145NTE

[4] Application of superconducting quantum interference devices to nuclear magnetic resonance [J].

Greenberg, YS .

REVIEWS OF MODERN PHYSICS, 1998, 70 (01) :175-222

[5]

Griswold MA, 2000, MAGN RESON MED, V44, P602, DOI 10.1002/1522-2594(200010)44:4<602::AID-MRM14>3.0.CO

[6]

2-5

[7] MAGNETOENCEPHALOGRAPHY - THEORY, INSTRUMENTATION, AND APPLICATIONS TO NONINVASIVE STUDIES OF THE WORKING HUMAN BRAIN [J].

HAMALAINEN, M ;

HARI, R ;

ILMONIEMI, RJ ;

KNUUTILA, J ;

LOUNASMAA, OV .

REVIEWS OF MODERN PHYSICS, 1993, 65 (02) :413-497

[8] NOVEL APPROACHES TO LOW-COST MRI [J].

MACOVSKI, A ;

CONOLLY, S .

MAGNETIC RESONANCE IN MEDICINE, 1993, 30 (02) :221-230

[9] Microtesla MRI with a superconducting quantum interference device [J].

McDermott, R ;

Lee, SK ;

ten Haken, B ;

Trabesinger, AH ;

Pines, A ;

Clarke, J .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2004, 101 (21) :7857-7861

[10] SQUID-detected magnetic resonance imaging in microtesla magnetic fields [J].

McDermott, R ;

Kelso, N ;

Lee, SK ;

Mössle, M ;

Mück, M ;

Myers, W ;

ten Haken, B ;

Seton, HC ;

Trabesinger, AH ;

Pines, A ;

Clarke, J .

JOURNAL OF LOW TEMPERATURE PHYSICS, 2004, 135 (5-6) :793-821

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