The Journal of Korea Institute of Information, Electronics, and Communication Technology (한국정보전자통신기술학회논문지)

Korea Information Electronic Communication Technology (한국정보전자통신기술학회)
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Compare correlation differnces in blood in blood flow velocity parameters and blood flow velocity the radial artery and a piece of paper as a maker

요골동맥과 첨지를 이용하여 혈류속도 파라미터와 혈류속도 사이의 상관관계 비교

  • Heo, Sun-Oh (Department of Biomedical Engineering at Catholic Kwandong University) ;
  • Jeong, Jin-Hyeong (Department of Biomedical Engineering at Catholic Kwandong University) ;
  • Lee, Sang-Sik (Department of Biomedical Engineering of Catholic Kwandong University)
  • Received : 2015.03.28
  • Accepted : 2015.04.09
  • Published : 2015.04.28
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Abstract

In this study, regressive models were employed to predict the blood velocity by using independent variables which measured by 3 sensors, such as electrocardiogram (ECG), photo-plethysmogram (PPG), pulse diagnosis sensor, without ultrasound device at high cost. In experiment, the high predictable model was induced to estimate the blood velocity correctly by comparing correlation values and significance probabilities between independent variables and blood velocities. Results showed that the model induced by two or three independent variables had a higher predictability than those by a single independent variable.

혈류는 신체 안에서 일정한 속도와 압력으로 흘러야하기 때문에 혈류속도는 개개인의 건강상태를 나타내주는 측정 가능한 주요지시자이다. 최근, 혈류속도는 고가의 초음파기기를 이용하여 측정되고 있다. 본 연구에서는 고가의 장비 없이 혈류속도를 예측하고자 3개의 센서(ECG, PPG, 맥진센서)를 이용한 측정치를 독립변수로 하는 회귀모델을 구축하였다. 실험에 참여한 피검자는 심장질환에 의한 동맥경화 증상으로 병원에 입원한 환자를 대상으로 하였다. 피검자들의 나이는 55-90 세이며, 남성은 7명, 여성은 4명으로 총 11명이다. 실험에서 독립변수와 초음파기기로 측정한 혈류속도 사이의 상관성과 유의확률을 비교하여 혈류속도의 예측 가능성이 높은 회귀모델을 도출하였으며, 1개의 센서를 이용한 단일 독립변수를 적용하는 경우보다 두 개 이상의 독립변수를 적용하는 경우에서 정확한 혈류속도 예측이 가능함을 확인하였다.

Keywords

References

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