A comparison of vector and radial magnetometer arrays for whole-head magnetoencephalography

Conference · Thu Feb 01 00:00:00 EST 1996

OSTI ID:251597

Hughett, P ^[1]; Miyauchi, S ^[2]

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1. Lawrence Berkeley National Lab., CA (United States)
2. Ministry of Post and Telecommunications, Tokyo (Japan). Communications Research Lab.

The number of detectors in magnetometer arrays for magnetoencephalography (MEG) has been steadily increasing, with systems containing or more detectors now possible. It is of considerable interest to know how best to configure such a large array. In particular, is it useful to measure all three components of the magnetic field, rather than just the radial component? This paper compares the information content provided by three different magnetometer arrays for whole-head measurements, using a definition of information content developed by Kemppainen and Ilmoniemi.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 251597
• Report Number(s): LBL-38495; CONF-9602101-3; ON: DE96011514
• Resource Relation: Conference: Biomagnetism conference, Santa Fe, NM (United States), Feb 1996; Other Information: PBD: Feb 1996
• Country of Publication: United States
• Language: English

Related Subjects

55 BIOLOGY AND MEDICINE
BASIC STUDIES
44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
ELECTROENCEPHALOGRAPHY
IMAGE PROCESSING
BRAIN
MAGNETOMETERS
COMPARATIVE EVALUATIONS
IMAGE SCANNERS
MAGNETIC PROBES