Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
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AIx Change According to Pressing Angle and Pressing Force of the Radial Artery Pulse by Tonometry

토노메트리 방식 맥파 측정의 가압 각도와 가압력에 따른 AIx 변화

  • Cho, JungHee (Future Medicine Division, Korea Institute of Oriental Medicine (KIOM)) ;
  • Jeon, Young Ju (Future Medicine Division, Korea Institute of Oriental Medicine (KIOM)) ;
  • Jun, Min-Ho (Future Medicine Division, Korea Institute of Oriental Medicine (KIOM)) ;
  • Kim, Young-Min (Future Medicine Division, Korea Institute of Oriental Medicine (KIOM))
  • 조정희 (한국한의학연구원 미래의학부) ;
  • 전영주 (한국한의학연구원 미래의학부) ;
  • 전민호 (한국한의학연구원 미래의학부) ;
  • 김영민 (한국한의학연구원 미래의학부)
  • Received : 2018.07.16
  • Accepted : 2018.07.27
  • Published : 2018.07.31
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Abstract

A radial artery pulse wave is measured while pressing an artery with constant force. However, pulse waveform measurements vary depending on pressing force and direction. Accurate pulse waveform measurements are important for analysis. Thus, it is necessary to define the measurement range of the permissible force and direction from which a correct pulse waveform is derived. In this study, pulse waves were generated by a pulse wave generator for accurate control. The pulse waves generated for different angles and pressing forces were analyzed. The augmentation index (AIx), which is the most commonly used index for evaluating vascular stiffness, was analyzed. The AIx was measured within ${\pm}6^{\circ}$ of the vessel direction and within ${\pm}8^{\circ}$ perpendicular to the vessel direction with a force that was 25% or more of the pressing force at which the maximum pressure wave was generated. We identified the applicable pressing force and angle range by analyzing the effect of pressing angle on the pulse wave. The AIx analysis performed using the pulse wave measurement device is reliable and reproducible.

Keywords

References

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