• Title/Summary/Keyword: 맥파전달속도

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동맥 맥파속도 진단의 생리학적 중요성과 과제

  • Sim, Eun-Bo
    • Journal of the KSME
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    • v.50 no.8
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    • pp.41-45
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    • 2010
  • 동맥에서의 맥파전달 속도는 동맥 혈류와 혈관벽의 상호작용에서 유발되며, 동맥경화, 당뇨합병증 등의 진단 등에 널리 사용되고 있다. 증가된 맥파전달속도는 혈관 노화 및 여러 병리학적 상황과 연관된 것으로 보고되고 있다. 따라서 이 글에서는 이러한 동맥 맥파전달속도의 생체유체역학적 발생 기전 및 의학적 중요성에 대하여 논의하며, PWV진단의 문제점 및 향후 발전방향에 대해서도 기술한다.

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Characteristics of Pulse Wave Velocity by the Simultaneously Measured ECG Waveform and Hall Device Radial Artery Waveform (ECG 파형과 홀소자 맥진파형으로 동시 측정한 맥파전달속도 특성 연구)

  • Yoo, Jae-Young;Choi, Suel-Gi;Kim, Dam-Bee;Lee, Sang-Suk
    • Journal of the Korean Magnetics Society
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    • v.22 no.4
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    • pp.136-141
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    • 2012
  • In the this research, two simultaneous peaks of radial artery pulse wave and ECG pulse wave measured by using clip-type pulsimeter and ECG were investigated in order to analyze pulse wave velocity. The measured value of a pulse wave velocity is about 5~7 m/s, it is proved one new method to measure an exact value of pulse wave velocity more than the typical biomedical signal monitoring system. This result implies that data measured by the oriental medical diagnosis apparatus as pulsimeter is clinically used in future.

Analysis of Pulse Waveform and Pulse Wave Velocity of Carotid Artery and Radial Artery by Using Clip-type Pulsimeter Equipped with Permanent and Hall Device (영구자석과 홀소자가 구비된 맥진기를 이용한 경동맥과 요골동맥의 맥진파형과 맥파전달속도 분석)

  • Kim, Dong-Young;Lee, Sang-Suk;Hyeon, Seog-San;Rhee, Jin-Kyu
    • Journal of the Korean Magnetics Society
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    • v.24 no.5
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    • pp.146-151
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    • 2014
  • The pulse waveforms of a carotid artery in the neck and a radial artery in the hand wrist were individually measured by using clip-type pulsimeter equipped with a permanent and Hall device. The pulse transit time and the pulse wave velocity obtained through comparison of two pulse waveforms were analyzed each other. A value of the pulse wave velocity was about 8.5 m/s similar to one measured by a conservative method. This result suggests that the clip-type pulsimeter as the reproducible and reliable one oriental diagnostic medical device can be predicted to any atherosclerosis state in the cardiac circulatory system.

A photoplythsmography starting point detection algorithm for pulse wave velocity (맥파속도 측정을 위한 PPG 기시점 검출알고리즘)

  • Jeong, Seokhoon;Ko, Kuk Won;Lee, Sangjoon
    • Proceedings of the Korea Information Processing Society Conference
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    • 2015.10a
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    • pp.949-951
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    • 2015
  • 본 연구는 맥파속도를 측정 하는데 간단한 방법으로 1채널 심전도 데이터와 4채널 광전식 용적맥파를 이용하여 취득한 데이터를 분석하는 알고리즘을 제안한다. 심전도의 R 피크점과 좌우 지첨, 족첨에서 발생하는 4 채널 맥파신호간 시간차를 이용하여 맥파 전달시간을 구하고 팔, 다리 길이로 나눠서 맥파전달속도를 구한다. 알고리즘은 심전도 R 피크점 검출, 4 채널 맥파에서의 피크점 검출 이후 검출된 피크정보를 이용하여 맥파의 시작지점인 기시점을 검출하는 간단한 방법을 개발하였고, 4 가지 맥파형태에 검출알고리즘을 적용하여 검증 하였다. 본 연구에서 개발한 방법으로 간단히 맥파속도를 측정하여 동맥경화나 고혈압, 당뇨 등 심혈관 관련 연구의 기반이 될 수 있을 것으로 사료된다.

Pulse Wave Velocity Measured by Radial Artery Clip-type Pulsimeter Equipped with a Hall Device and Electrocardiogram (홀소자가 구비된 요골동맥 집게형맥진기와 심전도로 측정된 맥파전달속도)

  • Lee, Kyu-Hwan;Lee, Sang-Suk
    • Journal of the Korean Magnetics Society
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    • v.23 no.4
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    • pp.130-134
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    • 2013
  • The clip-type pulsimeter equipped with a magnetic sensing Hall device and the most popular body sign of the electrocardiogram (ECG) were investigated in order to analyze the pulse wave velocity (PWV). The PWV simultaneously calculated by means of time difference between the maximum peak of ECG pulse wave and the starting point of radial artery pulse wave, and distance difference between the heart position and the radial wrist position. The PWV analyzed from the clinical data was a wider scope of 5~7 m/s with an average value of 6 m/s. By the prediction of blood vessel's elasticity from the analysis of PWV, it may be useful for developing an oriental-western diagnostic medical signal device for a U-health-care system in the future.

Development of Oriental-Western Fusion Patient Monitor by Using the Clip-type Pulsimeter Equipped with a Hall Sensor, the Electrocardiograph, and the Photoplethysmograph (홀센서 집게형 맥진기와 심전도-용적맥파계를 이용한 한양방 융합용 환자감시장치 개발연구)

  • Lee, Dae-Hui;Hong, Yu-Sik;Lee, Sang-Suk
    • Journal of the Korean Magnetics Society
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    • v.23 no.4
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    • pp.135-143
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    • 2013
  • The clip-type pulsimeter equipped with a Hall sensor has a permanent magnet attached in the "Chwan" position to the center of a radial artery. The clip-type pulsimeter is composed of a hardware system measuring voltage signals. These electrical bio-signals display pulse rate, non-invasive blood pressure, respiratory rate, pulse wave velocity (PWV), and spatial pulse wave velocity (SPWV) simultaneously measured by using the radial artery pulsimeter, the electrocardiograph (ECG), and the photoplethysmograph (PPG). The findings of this research may be useful for developing a oriental-western biomedical signal storage device, that is, the new and fusion patient monitor, for a U-health-care system.

Evaluation of Significance on the Brachial-ankle arterial pulse wave velocity And Cerebral Artery Vascular Stenosis (상완-발목 맥파 전달 속도와 뇌동맥 혈관 협착과의 유의성 평가)

  • Kim, Ji-Yul;Ye, Soo-Young
    • Journal of the Korean Society of Radiology
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    • v.13 no.6
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    • pp.873-878
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    • 2019
  • Cerebrovascular disease is one of the three major causes of death in Korea. Since these diseases are associated with atherosclerosis, the diagnosis of atherosclerotic factors should be presented. In this study, we evaluated the relationship between brachial-ankle arterial pulse wave velocity, cerebral artery vascular stenosis, blood pressure, obesity, and abdominal obesity by age group. The significance of cerebral artery stenosis and age group. The risk factors of atherosclerosis, such as blood pressure, obesity, and abdominal obesity, were significant in all age groups. When the pulse wave velocity of the brachial-ankle artery was increased, the cerebral artery stenosis was distributed in 57.3% of the total test subjects. If the arterial stiffness is suspected during the measurement of the pulse wave velocity of the brachial ankle artery, We recommend suspected vascular stenosis and perform a cerebral artery angiography. It is suggested that the data will be used as a baseline data for similar studies after evaluating the significance of blood pressure, obesity, and abdominal obesity as risk factors of atherosclerosis.

Comparison of Simultaneously Measured Pulse Waveforms from Both Hands using Permanent Magnet-Hall Pulsimeter Sensor (영구자석-홀 맥진센서를 이용한 양손 동시측정 맥진파형 비교 연구)

  • Yoo, Gi-Doo;Hwang, Sung-Gi;Lee, Sang-Suk
    • Journal of the Korean Magnetics Society
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    • v.22 no.1
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    • pp.27-31
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    • 2012
  • Two radially arterial pulses of both hands using the prototype of a clamping clip pulsimeter equipped with permanent magnet and Hall device are compared and analyzed. The phase difference of two pulse wave signals is dominantly presented from the simultaneous measuring clinical pulse wave signals for twenty two male participants at their 20's. It is possible to analyze that the fast and slow pulse wave for right hand and left hand depend on the muscle property of arms rather than the total length of blood vessel due to cardiovascular circulatory system.