The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Optimum Electrode Selection for Measuring Abdominal Pressure using Bio-Impedance Method

생체 임피던스 방법을 이용하여 복압을 측정하기 위한 최적 전극위치 선정

  • 김거식 (전북대학교 대학원 전자정보공학부) ;
  • 이상옥 (전북대학교 대학원 전자정보공학부) ;
  • 서정환 (전북대학교 재활의학과) ;
  • 김경섭 (건국대학교 의학공학부) ;
  • 송철규 (전북대학교 전자정보공학부)
  • Published : 2007.07.01
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Abstract

In this study, we determined the optimum electrode pair for measuring the abdominal pressure using bio-impedance method and compared with conventional methods. Because impedance changes differ from a weight, a height, contractile force, volume of muscle and blood other or whatever of individuals, it was quantified using values of impedance change, correlation coefficient and SNR. Our results showed the optimum electrode pair (1, 9) which could detect impedance changes due to an increase of the intensity of the abdominal pressure. The correlation coefficient and quadratic function between the RMS values of EMG and the impedance changes were 0.87 and $y=0.0014x^2+0.0620x+0.6958$, respectively. It demonstrated that the abdominal pressure could be measured noninvasively and simply using bio-impedance method. We propose that this optimum electrode configuration would be useful for future studies involving the convenient measurement of abdominal pressure by ambulatory urodynamics monitoring study.

Keywords

References

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