Spatial filtering in multichannel magnetoencephalography

P. Nicolas, M. Kouwenhoven

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    Abstract

    Partial differential equations in boundary-value problems have been studied in order to estimate the influence of several geometrical and physical parameters involved in the outward transmission of the brain's magnetic field. Explicit Green kernels are used to obtain integral forms of generalized solutions which can be deduced from each other, as expressed over concentric spherical surfaces. That leads to numerical applications dealing with the radial component of the magnetic field. From this study, a new spatial filtering is proposed as a possible improvement in two-dimensional magnetoencephalographic mapping using large multisensors.
    Original languageUndefined
    Pages (from-to)79-86
    JournalJournal of biomedical engineering
    Volume11
    Issue number1
    DOIs
    Publication statusPublished - 1989

    Keywords

    • IR-70574
    • Magnetoencephalography
    • Partial differential equations
    • boundary-value problems
    • spatial filtering

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