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A Comparison of Vector and Radial Magnetometer Arrays for Whole-Head Magnetoencephalography

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Biomag 96

Abstract

The number of detectors in magnetometer arrays for magnetoencephalography (MEG) has been steadily increasing, with systems containing 200 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 [2].

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References

  1. Robert L. Fagaly. Neuromagnetic instrumentation. In Susumu Sato, editor, Magnetoencephalography, volume 54 of Advances in Neurology, pages 11–32. Raven Press, New York, 1990.

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  2. P. K. Kemppainen and R. J. Ilmoniemi. Channel capacity of multichannel magnetometers. In S. J. Williamson, M. Hoke, G. Stroink, and M. Kotani, editors, Advances in Biomagnetism: Proccedings of the Seventh International Conference on Biomagnetism, pages 635–638. Plenum Press, 1989.

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  3. Jukka Sarvas. Basic mathematical and electromagnetic concepts of the biomagnetic inverse problem. Phys. Med. Biol., 32(l):ll-22, 1987.

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  4. Claude E. Shannon and Warren Weaver. The Mathematical Theory of Communication, pages 66–70 and 89–90. University of Illinois Press, 1963.

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Author information

Authors and Affiliations

  1. Lawrence Berkeley National Laboratory, Berkeley, CA, USA

    P. Hughett

  2. Communications Research Laboratory, Ministry of Post and Telecommunications, Tokyo, Japan

    S. Miyauchi

Authors
  1. P. Hughett
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  2. S. Miyauchi
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Editor information

Editors and Affiliations

  1. Radiology Service Albuquerque, VA Medical Center, Building 49, 114M 1501 San Pedro SE, Albuquerque, NM, 87108, USA

    Cheryl J. Aine

  2. Department of Physics, Dalhousie University, Halifax, Nova Scotia, Canada, B3H 3J5

    Gerhard Stroink

  3. Biophysics Group (P-21), MS D454, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM, 87545, USA

    Charles C. Wood

  4. Department of New Mexico School of Medicine, Albuquerque, NM, 87131, USA

    Yoshio Okada

  5. Department of Physics and Astronomy, The Open University, Milton Keynes, MK7 6AA, UK

    Stephen J. Swithenby

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© 2000 Springer Science+Business Media New York

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Hughett, P., Miyauchi, S. (2000). A Comparison of Vector and Radial Magnetometer Arrays for Whole-Head Magnetoencephalography. In: Aine, C.J., Stroink, G., Wood, C.C., Okada, Y., Swithenby, S.J. (eds) Biomag 96. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-1260-7_13

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  • DOI: https://doi.org/10.1007/978-1-4612-1260-7_13

  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-1-4612-7066-9

  • Online ISBN: 978-1-4612-1260-7

  • eBook Packages: Springer Book Archive

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