Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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A Study of the Analysis of Characteristics of Nonlinear Dynamic System on Blood-Flow of Peripheral Blood-Vessel between Diabetic Patients and Control Subjects

당뇨병환자와 정상인의 말초혈관혈류의 비선형적 운동계 분석에 대한 연구

  • Kim, D.H. (Department of Occular-Optics, College of Masan) ;
  • Choi, J.Y. (Department of Biomedical Engineering, College of Health, Inje University) ;
  • Yi, S.H. (Department of Physics, Inje University) ;
  • Go, H.W. (Department of KRISS) ;
  • Nam, S.H. (Department of Biomedical Engineering, College of Health, Inje University)
  • 김덕훈 (마산전문대학 안경광학과) ;
  • 최준영 (인제대학교 보건대학 의용공학과) ;
  • 이상훈 (인제대학교 자연과학대학 물리학과) ;
  • 고한우 (한국표준과학연구소 인간공학그룹) ;
  • 남상희 (인제대학교 보건대학 의용공학과)
  • Published : 1996.11.15
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Abstract

In general, the physiological systems have shown nonlinear complex phenomena. This study analyzes nonlinear characteristics of the flow of peripheral blood vessel dynamics in physiological systems using chaos theory. We performed this study by means of several quantity methods and power spectrum. The quantity methods are a phase space reconstruction and a poincare's map. And the power spectrum method is a conventional linear analysis. Experimental data have been acquired from examining 10 diabetic patients, and 10 control subjects in initial stable state. In acquisition experminetal data, we anlysized the differences of nonlinear characteristics between diabetic group and control group. The results of quality analysis methods showed the flow of peripheral blood vessel had the nonlinear and chaotic characteristics, screening a strange attractor on reconstructed phase space. In conclusion, the flow dynamics of peripheral blood vessel had a chaotic behavior of nonlinear dynamic systems, dynamic system, and differences of characteristic of nonlinear dynamic system.

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