A study on high-precise magnetoencephalo field source estimation using the head model

K. Ito, S. Saita, N. Niki, N. Nakasato, T. Yoshimoto

Research output: Contribution to journalConference articlepeer-review

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 wieldy 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 extracted cortex by means of the Multiple Signal Classification (MUSIC) method.

Original languageEnglish
Pages (from-to)219-226
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4324
DOIs
Publication statusPublished - 2001
Externally publishedYes
EventMedical Imaging 2001: Image Perception and Performance - San Diego, CA, United States
Duration: 2001 Feb 212001 Feb 22

Keywords

  • 3 Layer model
  • Head shape
  • Inside conductivity
  • Inverse problem
  • MEG
  • MUSIC method
  • Magnetoencephalo field source estimation
  • Number of triangle elements
  • Realistic model

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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