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Titolo:
Measurements of biomagnetic fields using a high-resolution dc superconducting quantum interference device magnetometer
Autore:
Iramina, K; Hong, B; Uchida, S; Goto, K; Ueno, S; Nakayama, S;
Indirizzi:
Univ Tokyo, Grad Sch Med, Dept Biomed Engn, Tokyo 1130033, Japan Univ Tokyo Tokyo Japan 1130033 d, Dept Biomed Engn, Tokyo 1130033, Japan Seiko Instruments Inc, Matsudo, Chiba 271, Japan Seiko Instruments Inc Matsudo Chiba Japan 271 , Matsudo, Chiba 271, Japan
Titolo Testata:
JOURNAL OF APPLIED PHYSICS
fascicolo: 11, volume: 83, anno: 1998,
parte:, 2
pagine: 6465 - 6467
SICI:
0021-8979(19980601)83:11<6465:MOBFUA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
4
Recensione:
Indirizzi per estratti:
Indirizzo: Iramina, K Univ Tokyo, Grad Sch Med, Dept Biomed Engn, Tokyo 1130033, Japan Univ Tokyo Tokyo Japan 1130033 med Engn, Tokyo 1130033, Japan
Citazione:
K. Iramina et al., "Measurements of biomagnetic fields using a high-resolution dc superconducting quantum interference device magnetometer", J APPL PHYS, 83(11), 1998, pp. 6465-6467

Abstract

We have developed a multichannel high-resolution superconducting quantum interference device magnetometer for measuring biomagnetic fields produced by small animals. We measured the magnetocardiogram produced by a rat. Topographies of the P wave, QRS wave, and T wave of the rat magnetocardiogram were obtained. We also measured the magnetoretinogram, visually evoked magnetic fields, and auditory evoked magnetic fields of the rat. The signals of the magnetoretinogram appeared at 60 ms latency and the field intensities were about 0.6 pT. It was not possible to obtain the clear visually evoked fields because those signals were hidden behind the magnetoretinogram. It waspossible to obtain auditory evoked magnetic fields of the rat. The significant differences of the wave forms were observed in both sides of the rightear, which are separated by 15 mm. Our system has adequate spatial resolution for measurement of the magnetocardiogram and auditory evoked magnetic fields produced by small animals. (C) 1998 American Institute of Physics. [S0021-8979(98)39211-7].

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Documento generato il 30/03/20 alle ore 12:45:46