Scanning rheo-magneto-acoustic method of current imaging in volume conductors

Bruce C. Towe

Scanning rheo-magneto-acoustic method of current imaging in volume conductors

Bruce C. Towe

Biological and Health Systems Engineering, School of (IAFSE-BHSE)

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

It can be shown that acoustic waves are generated when oscillating magnetic fields are applied to tissue supporting ionic current flows. These acoustic waves result from predictable and relatively well understood Lorentz forces. At microampere biological current levels and with 1-kHz and 0.2-T magnetic fields, the forces are on the order of 10^-10 N and thus the acoustic responses are weak but readily detectable using microphones in small objects. This principle has been used in conjunction with a magnetic field scanning system to produce images of the flow of ion currents in 2 cm × 2 cm × 3 mm conductors.

Original language	English (US)
Title of host publication	IEEE/Engineering in Medicine and Biology Society Annual Conference
Place of Publication	Piscataway, NJ, United States
Publisher	Publ by IEEE
Pages	991
Number of pages	1
Volume	10
Edition	pt2
State	Published - Nov 1988
Event	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society - New Orleans, LA, USA Duration: Nov 4 1988 → Nov 7 1988

Other

Other	Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society
City	New Orleans, LA, USA
Period	11/4/88 → 11/7/88

ASJC Scopus subject areas

Engineering(all)

Cite this

Towe, BC 1988, Scanning rheo-magneto-acoustic method of current imaging in volume conductors. in IEEE/Engineering in Medicine and Biology Society Annual Conference. pt2 edn, vol. 10, Publ by IEEE, Piscataway, NJ, United States, pp. 991, Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, New Orleans, LA, USA, 11/4/88.

@inproceedings{8e74c3adf9a04e8a95a8beb052666326,

title = "Scanning rheo-magneto-acoustic method of current imaging in volume conductors",

abstract = "It can be shown that acoustic waves are generated when oscillating magnetic fields are applied to tissue supporting ionic current flows. These acoustic waves result from predictable and relatively well understood Lorentz forces. At microampere biological current levels and with 1-kHz and 0.2-T magnetic fields, the forces are on the order of 10-10 N and thus the acoustic responses are weak but readily detectable using microphones in small objects. This principle has been used in conjunction with a magnetic field scanning system to produce images of the flow of ion currents in 2 cm × 2 cm × 3 mm conductors.",

author = "Towe, {Bruce C.}",

year = "1988",

month = nov,

language = "English (US)",

volume = "10",

pages = "991",

booktitle = "IEEE/Engineering in Medicine and Biology Society Annual Conference",

publisher = "Publ by IEEE",

edition = "pt2",

note = "Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society ; Conference date: 04-11-1988 Through 07-11-1988",

}

TY - GEN

T1 - Scanning rheo-magneto-acoustic method of current imaging in volume conductors

AU - Towe, Bruce C.

PY - 1988/11

Y1 - 1988/11

N2 - It can be shown that acoustic waves are generated when oscillating magnetic fields are applied to tissue supporting ionic current flows. These acoustic waves result from predictable and relatively well understood Lorentz forces. At microampere biological current levels and with 1-kHz and 0.2-T magnetic fields, the forces are on the order of 10-10 N and thus the acoustic responses are weak but readily detectable using microphones in small objects. This principle has been used in conjunction with a magnetic field scanning system to produce images of the flow of ion currents in 2 cm × 2 cm × 3 mm conductors.

AB - It can be shown that acoustic waves are generated when oscillating magnetic fields are applied to tissue supporting ionic current flows. These acoustic waves result from predictable and relatively well understood Lorentz forces. At microampere biological current levels and with 1-kHz and 0.2-T magnetic fields, the forces are on the order of 10-10 N and thus the acoustic responses are weak but readily detectable using microphones in small objects. This principle has been used in conjunction with a magnetic field scanning system to produce images of the flow of ion currents in 2 cm × 2 cm × 3 mm conductors.

UR - http://www.scopus.com/inward/record.url?scp=0024112053&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024112053&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0024112053

VL - 10

SP - 991

BT - IEEE/Engineering in Medicine and Biology Society Annual Conference

PB - Publ by IEEE

CY - Piscataway, NJ, United States

T2 - Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Y2 - 4 November 1988 through 7 November 1988

ER -

Scanning rheo-magneto-acoustic method of current imaging in volume conductors

Abstract

Other

ASJC Scopus subject areas

Other files and links

Fingerprint

Cite this