센서학회지 (Journal of Sensor Science and Technology)

  • 제22권1호
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  • Pages.38-43
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  • 2013
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  • 1225-5475(pISSN)
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  • 2093-7563(eISSN)
한국센서학회 (The Korean Sensors Society)
권호 표지
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Simulation of the Blood Pressure Estimation Using the Artery Compliance Model and Pulsation Waveform Model

  • Jeon, Ahyoung (Dept. of Biomedical-engineering, School of Medicine, Pusan National Unversity) ;
  • Ro, Junghoon (Dept. of Biomedical-engineering, School of Medicine, Pusan National Unversity) ;
  • Kim, Jaehyung (Dept. of Computer Aided Science, Inje University) ;
  • Baik, Seongwan (Dept. of Anesthesia and Pain Medicine, School of Medicine, Yangsan Pusan National University) ;
  • Jeon, Gyerok (Dept. of Biomedical-engineering, School of Medicine, Pusan National Unversity)
  • 투고 : 2012.12.06
  • 심사 : 2012.01.22
  • 발행 : 2013.01.31
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초록

In this study, the artery's compliance model and the pulsation waveform model was proposed to estimate blood pressure without applying HPF (High Pass Filter) on signal measured by the oscillometric method. The method proposed in the study considered two ways of estimating blood pressure. The first method of estimating blood pressure is by comparing and analyzing changes in pulsation waveform's dicrotic notch region during each cardiac period. The second method is by comparing and analyzing morphological changes in the pulsation waveform during each cardiac period, which occur in response to the change in pressure applied on the cuff. To implement these methods, we proposed the compliance model and the pulsation waveform model of the artery based on hemodynamic theory, and then conducted various simulations. The artery model presented in this study only took artery's compliance into account. Then, a pulsation waveform model was suggested, which uses characteristic changes in the pulsation waveform to estimate blood pressure. In addition, characteristic changes were observed in arterial volume by applying artery's pulsation waveform to the compliance model. The pulsation waveform model was suggested to estimate blood pressure using characteristic changes of the pulsation waveform in the arteries. This model was composed of the sum of sine waves and a Fourier's series in combination form up to 10th harmonics components of the sinusoidal waveform. Then characteristic of arterial volume change was observed by inputting pulsation waveform into the compliance model. The characteristic changes were also observed in the pulsation waveform by mapping the arterial volume change in accordance with applied cuff's pressure change to the pulsation waveform's change according to applied pressure changes by cuff. The systolic and diastolic blood pressures were estimated by applying positional change of pulsation waveform's dicrotic notch region.

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참고문헌

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