Abstract
Geselowitz and Grynszpan have considered the current dipole as a source of the biomagnetic field1. This is a natural and successful first approximation in many electrophysiological cases. Williamson and Kaufman have introduced the concept of a current dipole as an equivalent current source (E.C.S.) of biomagnetic field in some aspects of brain research. They have also emphasized the influence of the finite magnetometer pickup coil size and calculated the correction factor2 which is needed when estimating the spatial position of an equivalent current dipole source from the extrema of the measured magnetic field distribution.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
F. Grynszpan and D.B. Geselowitz, Model studies of the magnetocardiogram, Biophys J. 13: 9 11 (1973).
S.J. Williamson and L.Kaufman, Magnetic fields of the cerebral cortex, in: “Biomag- netism,” S.N. Erné, H.D. Hahlbohm and H. Lübbig, eds., Walter de Gruyter, Berlin, New York (1981).
T. Katila and P. Karp, Magnetocardiology: Morphology and multipole representation, in: “Biomagnetism - An Interdisciplinary Approach”, S.J. Williamson, G.L. Romani, L. Kaufman and I. Modena, eds., Plenum Press, New York and London (1983).
T. Katila, R. Maniewski, M. Mäkijärvi, J. Nenonen and P. Siltanen, On the accuracy of source localization in cardiac measurements, Phys. Med. Biol. 32: 125 (1987).
J.P. Wikswo Jr., Theoretical aspects of the ECG-MCG relationship, in: “Biomagnetism - An Interdisciplinary Approach”, S.J. Williamson, G.L. Romani, L. Kaufman and I. Modena, eds., Plenum Press, New York and London (1983).
S.N. Erné, L. Trahms and Z. Trontelj, (1988). Current multipoles as sources of biomag- netic fields, in: “Biomagnetism’87”, K. Atsumi, M. Kotani, S. Ueno, T. Katila and S.J. Williamson, eds., Tokyo Denki University Press, Tokyo (1987).
J.A. Stratton, “Electromagnetic Theory,” McGraw-Hill Book Company,Inc., New York and London (1941).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1989 Plenum Press, New York
About this chapter
Cite this chapter
Jazbinšek, V., Trontelj, Z., Erné, S.N., Trahms, L. (1989). Influence of the Finite Pickup Coil Size on the Localization of Current Sources with Quadrupolar Components. In: Williamson, S.J., Hoke, M., Stroink, G., Kotani, M. (eds) Advances in Biomagnetism. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0581-1_122
Download citation
DOI: https://doi.org/10.1007/978-1-4613-0581-1_122
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-7876-4
Online ISBN: 978-1-4613-0581-1
eBook Packages: Springer Book Archive