A magneto-acoustic method for the noninvasive measurement of bioelectric currents

B. C. Towe, M. R. Islam

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

A novel method for the noninvasive measurement of low-level ionically conducted electric currents flowing in electrolytes and tissue is investigated in this work. Experiments show that application of oscillating magnetic fields to current carrying media will cause focal Lorentz forces which generate detectable vibrations. These vibrations can be sensitively and noninvasively detected by surface contact detectors and can be used to determine the magnitude of internal current flows. Microampere-level currents introduced in hamsters to simulate natural bioelectric currents have been sensitively detected by this approach. The basic technique has potential application to a variety of diverse electrophysiology measurement situations.

Original languageEnglish (US)
Pages (from-to)892-894
Number of pages3
JournalIEEE Transactions on Biomedical Engineering
Volume35
Issue number10
StatePublished - Oct 1988

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Acoustics
Electrophysiology
Lorentz force
Electric currents
Electrolytes
Tissue
Magnetic fields
Detectors
Experiments

ASJC Scopus subject areas

  • Biomedical Engineering

Cite this

A magneto-acoustic method for the noninvasive measurement of bioelectric currents. / Towe, B. C.; Islam, M. R.

In: IEEE Transactions on Biomedical Engineering, Vol. 35, No. 10, 10.1988, p. 892-894.

Research output: Contribution to journalArticle

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