Summary
We evaluated the influence of the head model on biomagnetic source localization by utilizing a computer simulation. We localized the source of a magnetic field that was calculated using a realistic head model, and then evaluated the localization errors. It was seen that the sphere model adequately localized the dipole in cases near the sensor, but not in cases where the dipole was deeply situated.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Barth, D.S., Sutherling, W., Broffman, J. and Beatty, J. Magnetic localization of a dipolar current source implanted in a sphere and a human cranium. Electroenceph. Clin. Neurophysiol., 1986, 63: 260–273.
Hämäläinen, M.S. and Sarvas, J. Realistic conductivity geometry model of the human head for interpretation of neuromagnetic data. IEEE Trans. on Biomedical Engineering, 1989, 36: 165–172.
Kajihara, S., Shibata, K. and Okuyama, Y. Precision of calculation by boundary element method for neuromagnetic data analysis. The 7th Congress of Japan Biomagnetism and Bioelectromagnetics Society, Fukuoka, June 1992.
Sarvas, J. Basic mathematical and electromagnetic concepts of the biomagnetic inverse problem. Phys. Med. Biol., 1987, 32: 11–22.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Tomita, S., Kajihara, S., Kondo, Y. et al. Influence of head model in biomagnetic source localization. Brain Topogr 8, 337–340 (1996). https://doi.org/10.1007/BF01184795
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01184795