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

The Korean Institute of Electrical Engineers (대한전기학회)
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Optimization of Measuring Cardiac Output by Both Hands Electrode Impedance Method

양손 전극의 임피던스법을 이용한 심박출량 측정의 최적화

  • 정상오 ((주)누가의료기 기술연구소) ;
  • 심명헌 (연세대학교 의공학과 대학원) ;
  • 정운모 ((주)누가의료기 기술연구소) ;
  • 김민용 (연세대학교 의공학과 대학원) ;
  • 윤찬솔 (연세대학교 의공학과 대학원) ;
  • 윤형로 (연세대학교 의공학과)
  • Received : 2010.12.16
  • Accepted : 2011.08.11
  • Published : 2011.09.01
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Abstract

In this study, a new method that can estimate ICG data from a subject's both hands to measure Cardiac Output under convenient sensor environment. With this aim, a grip-type electrode was implemented to measure ICG. To improve the accuracy of measurement, the regression equation was extracted using multiple bio-parameters and our result was compared with the thoracic ICG equipment(Physio Flow$^{(R)}$, PF104D, Manatec Biomedical, France), which is being used in clinics. The subjects consist of 26 men and 4 women(age in $22.0{\pm}3.32$). They are no cardiac disease. Parameters available for regression model were used gender, BMI, MBP, LVET, dZ/dt(max), distance between the measured electrodes, body impedance, and PTT. As a result of analyzing the ICG measurement value on thorax and both hands, the correlation with stroke volume, heart rate, and cardiac output was $R^2$=0.853, $R^2$=0.958 and $R^2$=0.899, respectively.

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References

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