Progress in Superconductivity

The Korean Superconductivity Society (한국초전도학회)
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Rat Magnetocardiograms Measured by YBCO SQUID Magnetometer

YBCO SQUID를 이용한 실험쥐의 심자도 측정

  • Ahn, San (Korea Research Institute of Standards and Science) ;
  • Kim, I.S. (Korea Research Institute of Standards and Science) ;
  • Song, J.H. (Chungnam National University)
  • Received : 2011.03.19
  • Accepted : 2011.04.04
  • Published : 2011.04.30
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Abstract

We have developed a high-$T_C$ SQUID magnetometer system to measure magnetocardiograms of laboratory rats. White noise of the measurement system was about 50 fT/$Hz^{1/2}$ when measured in a magnetically shielded box. We optimized the measurement position to obtain clear MCG wave from rat's small heart by using grid measurements. With the optimization, the MCG signal was successfully detected with the peak amplitude of about 50 pT. We could observe well defined P-, QRS-, and T-wave from the rat MCG. The results suggest that the developed system has a strong potential to monitor the progress of heart disease model using laboratory rat.

Keywords

References

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