Measurements of biomagnetic fields using a high-resolution dc superconducting quantum interference device magnetometer

K. Iramina, B. Hong, S. Uchida, K. Goto, S. Ueno, S. Nakayama

研究成果: ジャーナルへの寄稿記事

15 引用 (Scopus)

抄録

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 was possible to obtain auditory evoked magnetic fields of the rat. The significant differences of the wave forms were observed in both sides of the right ear, 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.

元の言語英語
ページ(範囲)6465-6467
ページ数3
ジャーナルJournal of Applied Physics
83
発行部数11
DOI
出版物ステータス出版済み - 1 1 1998
外部発表Yes

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magnetometers
rats
interference
high resolution
magnetic fields
animals
ear
P waves
topography
spatial resolution

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

これを引用

Measurements of biomagnetic fields using a high-resolution dc superconducting quantum interference device magnetometer. / Iramina, K.; Hong, B.; Uchida, S.; Goto, K.; Ueno, S.; Nakayama, S.

:: Journal of Applied Physics, 巻 83, 番号 11, 01.01.1998, p. 6465-6467.

研究成果: ジャーナルへの寄稿記事

Iramina, K. ; Hong, B. ; Uchida, S. ; Goto, K. ; Ueno, S. ; Nakayama, S. / Measurements of biomagnetic fields using a high-resolution dc superconducting quantum interference device magnetometer. :: Journal of Applied Physics. 1998 ; 巻 83, 番号 11. pp. 6465-6467.
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