심혈관계 시뮬레이터를 이용한 맥파 반사지점 추정방법들의 비교
Evaluation of methods for estimating the pulse reflection site with cardiovascular simulator
3
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Objectives: Wave reflection is an important factor that determines the shape of the pulse wave. The purpose of this study is to compare the conventional method used for estimating the reflection site of pulse with a cardiovascular simulator. Methods: In this study, cardiovascular simulator with one elastic tube was used. The pressure and flow was measured simultaneously at three different points. The measured data were used to the conventional methods to estimate the pulse wave reflection site. The results were compared with the known length which were the distances from the measured points to the end of tube. Results & Conclusions: There is a significant error with the time domain method. While, the reflection site with the frequency domain method was similar to the actual reflection site.
Abstract
Objectives: Wave reflection is an important factor that determines the shape of the pulse wave. The purpose of this study is to compare the conventional method used for estimating the reflection site of pulse with a cardiovascular simulator. Methods: In this study, cardiovascular simulator with one elastic tube was used. The pressure and flow was measured simultaneously at three different points. The measured data were used to the conventional methods to estimate the pulse wave reflection site. The results were compared with the known length which were the distances from the measured points to the end of tube. Results & Conclusions: There is a significant error with the time domain method. While, the reflection site with the frequency domain method was similar to the actual reflection site.
참고문헌 (14)
- Zannoli R, "Mechanical simulator of the cardiovascular system", Physica Medica, 25, pp.94~100 (2009)
- 이용흠, "5단계 가압 맥파측정에 의한 연령별 혈관 경화도 분석", Korean Journal of Acupuncture, 27(2), pp.107~120 (2010), 경락경혈학회
- Mills CJ, "Pressure flow relationships and vascular impedance in man", Cardiovasc Res, 4, pp.405~ (1970)
- Murgo JP, "Aortic input impedance in normal men:relationship to pressure wave forms", Circulation, 62, pp.105~116 (1980)
- Nichols WW, "Determinants of isolated systolic hypertesion in the elderly", Journal of Hypertension, 10, pp.S73~S77 (1992)
- Newman DL, "Pulse-wave reflection in elastic tubes", Medical and biological engineering, 13, pp.720~726 (1975)
- Segers P, "Role of tapering in aortic wave reflection: hydraulic and mathematical model study", Journal of biomechanics, 33, pp.299~306 (2000)
- Khir AW, "Measurements of wave speed and reflected waves in elastic tubes and bifurcations", Journal of biomechanics, 35, pp.775~783 (2002)
- 이주연, "Mock Circulatory System with a Silicon Tube for the Study of Pulse Waves in an Arterial System", Journal of the Korean Physical Society, 65(7), pp.1134~1141 (2014), 한국물리학회
- Legendre D, "Mock circulatory system for the evaluation of left ventricular assist devices, endoluminal prostheses, and vascular diseases", Artificial organs, 32, pp.461~467 (2008)
- Westerhof N, "Snapshots of hemodynamics: an aid for clinical research and graduate education", pp.109~110 (2010), Springer Science & Business Media
- W. W. Nichols, "Input impedance of the systemic circulation in man", Circulation Research, 40(5), pp.451~458 (1977)
- S. Laxminarayan, "The calculation of forward and backward waves in the arterial system", Medical and Biological Engineering and Computing, 17(1), pp.130~ (1979)
- O'Rourke MF, "Cartmill TB: Influence of aortic coarctation on pulsatile hemodynamics in the proximal aorta", Circulation, 44, pp.281~ (1971)