WIT Press


Identification Of A Current Dipole In The Brain Using BEM And Nonlinear Optimization

Price

Free (open access)

Paper DOI

10.2495/BE970371

Volume

19

Pages

10

Published

1997

Size

663 kb

Author(s)

N. Kobayashi and K. Hayami

Abstract

We will apply the three-dimensional boundary element method and the method of nonlinear optimization to the problem of estimating the position of a current dipole in the brain, using a new object function based on the potential due to the dipole placed in the infinite homogeneous region. Numerical experiments per- formed for the three concentric spheres representing the brain, skull, and scalp. as the model of the head, validate the effectiveness of the proposed method. 1 Introduction We consider the problem of estimating the position of excitation in the brain based on measurements of the electric potential on the scalp. The excitation is modelled as a curr

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