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Titolo:
Peripheral nerve conduction recorded by a micro gradiometer system (micro-SQUID) in humans
Autore:
Hoshiyama, M; Kakigi, R; Nagata, O;
Indirizzi:
Natl Inst Physiol Sci, Dept Integrat Physiol, Okazaki, Aichi 4448585, Japan Natl Inst Physiol Sci Okazaki Aichi Japan 4448585 i, Aichi 4448585, Japan Natl Inst Physiol Sci, Tech Div, Okazaki, Aichi 4448585, Japan Natl Inst Physiol Sci Okazaki Aichi Japan 4448585 i, Aichi 4448585, Japan
Titolo Testata:
NEUROSCIENCE LETTERS
fascicolo: 3, volume: 272, anno: 1999,
pagine: 199 - 202
SICI:
0304-3940(19990917)272:3<199:PNCRBA>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACTION FIELDS;
Keywords:
Micro-SQUID; nerve action field; human; peripheral nerve; gradiometer; quadrupole;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
10
Recensione:
Indirizzi per estratti:
Indirizzo: Hoshiyama, M Natl Inst Physiol Sci, Dept Integrat Physiol, Okazaki, Aichi 4448585, Japan Natl Inst Physiol Sci Okazaki Aichi Japan 4448585 585, Japan
Citazione:
M. Hoshiyama et al., "Peripheral nerve conduction recorded by a micro gradiometer system (micro-SQUID) in humans", NEUROSCI L, 272(3), 1999, pp. 199-202

Abstract

We developed a new multi (twelve)-channel gradiometer system with the smallest and highest quality superconducting quantum interference device (micro-SQUID). A very small distance (3.80 mm) between the sensor coils and the skin provides quite high spatial resolution. The actual whole image of the sensory nerve action fields (NAF) of the human median nerve at the wrist were successfully recorded following digital nerve stimulation by using the micro-SQUID. The NAF showed the biphasic waveform at each of the 12 channels,and the isomagnetic field map clearly showed the moving quadrupole pattern. The quadrupole comprised a dipole for depolarization followed by another dipole with the opposite direction for repolarization. The polarized lengthof the nerve obtained by reconstructing the magnetic field maps was approximately 17 cm, and the magnetic field complex moved along the nerve from the distal to the proximal part of the wrist at 58.7 m/s. (C) 1999 Elsevier Science Ireland Ltd. All rights reserved.

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Documento generato il 14/08/20 alle ore 07:20:37