High-precision magnetoencephalo field-source estimation using the head model

Kazumasa Ito; Shinsuke Saita; Noboru Niki; Nobukazu Nakasato; Takashi Yoshimoto M.D.

doi:10.1117/12.431192

26 June 2001 High-precision magnetoencephalo field-source estimation using the head model

Kazumasa Ito, Shinsuke Saita, Noboru Niki, Nobukazu Nakasato, Takashi Yoshimoto M.D.

Proceedings Volume 4324, Medical Imaging 2001: Image Perception and Performance; (2001) https://doi.org/10.1117/12.431192
Event: Medical Imaging 2001, 2001, San Diego, CA, United States

Abstract

In this paper we present the effect of the realistically- shaped head model on MEG inverse problem by using head model which is made up of triangle elements. Among many suggested methods until now, the head model most widely used is the sphere model. However the shape of human head is different from sphere and the conductivity of the head is not uniform. As basic study for accurate estimation, we present the effect of the realistically-shaped head model on MEG inverse problem by using head model which is made up of triangle elements. Then, we perform the estimation on the extract cortex by means of the Multiple Signal Classification (MUSIC) method.

Citation Download Citation

Kazumasa Ito, Shinsuke Saita, Noboru Niki, Nobukazu Nakasato, and Takashi Yoshimoto M.D. "High-precision magnetoencephalo field-source estimation using the head model", Proc. SPIE 4324, Medical Imaging 2001: Image Perception and Performance, (26 June 2001); https://doi.org/10.1117/12.431192

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