Development of biomagnetic measurement system for mice with high spatial resolution

We have been developing a mice biomagnetic measurement system using a dc superconducting quantum interference device magnetometer for a comparative magnetoencephalogram study of transgenic and wild mice. In this study, we adopted a magnetometer with a pickup coil of 1.0 mm diameter and 0.7 mm lift-o...

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Bibliographic Details
Published in:Applied physics letters 2004-07, Vol.85 (2), p.332-334
Main Authors: Ono, Yumie, Ishiyama, Atsushi, Kasai, Naoko, Chinone, Kazuo
Format: Article
Language:English
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Summary:We have been developing a mice biomagnetic measurement system using a dc superconducting quantum interference device magnetometer for a comparative magnetoencephalogram study of transgenic and wild mice. In this study, we adopted a magnetometer with a pickup coil of 1.0 mm diameter and 0.7 mm lift-off distance to improve spatial resolution and magnetic field sensitivity. The magnetocardiogram of a wild mouse was measured as the initial application of the system. The bipolar peak positions in a magnetic field map separated by 5.6 mm were clearly detected with the maximum amplitude of 88 pT .
ISSN:0003-6951
1077-3118
DOI:10.1063/1.1772517