Repetitive Adjustment to Estimate the Electric Current Sources in a Nerve Fiber with Magnetic Field Measurement

Takehito Hayami, Yukuo Mishima, Osamu Hiwaki

Research output: Contribution to journalArticle

Abstract

Magnetic field measuring equipment provides us the way to examine the active position of a peripheral nerve without contact or invasion. To develop a process to estimate the position precisely, simulation study of the magnetic field induced by a myelinated nerve fiber was executed. The electric current sources around the active position of a nerve fiber can be approximated as a pair of electric current dipoles, which represent depolarization and repolarization respectively. Therefore the current sources to estimate from the detected pattern of the magnetic field were modeled as a pair of electric current dipoles. A repetitive adjustment process was proposed as an effective method to find the appropriate positions of the dipoles as the sources of the magnetic fields.

Original languageEnglish
Pages (from-to)170-175
Number of pages6
JournalIEEJ Transactions on Sensors and Micromachines
Volume125
Issue number4
DOIs
Publication statusPublished - Jan 1 2005
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

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