Biomag 96 pp 314-317 | Cite as

A Four-Sensor Skeleton Configuration for Single Dipole Localization

  • N. M. Prakash
  • F. A. Spelman
  • P. Read
Conference paper

Abstract

Magnetic dipole localization is used in the study of epileptic foci, cardiac arrythmias, lung contaminants, and gastrointestinal motility. The source of the magnetic field is described in terms of a limited number of parameters, which are found by the use of an appropriate least squares search method [1]. The number of parameters for a magnetic dipole in three-dimensional space is six (three position parameters, two orientation parameters and one dipole moment). We have devised a method to localize a single magnetic dipole that reduces the number of parameters to three.

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References

  1. [1]
    Sarvas, J., “Basic mathematical and electromagnetic concepts of the biomagnetic inverse problem,” Physics in Medicine and Biology, 1987, 32: 11–22.ADSCrossRefGoogle Scholar
  2. [2]
    Brauer, F., and Stroink, G., “Multipole analysis in magnetopneumography—a model study,” IEEE Transactions on Biomedical Engineering, 1985, 32: 385–391.Google Scholar
  3. [3]
    Spelman, F.A., Nelson, J.A., Heitkemper, M., Read, P., Prakash, N.M., Seibold, C.J., and Pope II, C. E. “Magnetometer monitoring of human gut transport,” Gastroenterology, 1994, 107: 1237.Google Scholar

Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • N. M. Prakash
    • 1
  • F. A. Spelman
    • 1
  • P. Read
    • 1
  1. 1.Center for BioengineeringUniversity of WashingtonSeattleUSA

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