The analysis and diagnosis of unstable behavior of the blood vessel wall with an aneurysm based on noise science

A. Toshimitsu Yokobori, Michiaki Owa, Masataka Ichiki, Tomoki Satoh, Yuji Ohtomoa, Yusuke Satoh, Seiichi Ohgoshi, Yoshihiko Kinoshita, Shinichi Karino

    Research output: Contribution to journalReview articlepeer-review

    10 Citations (Scopus)

    Abstract

    Previously, one of the authors developed a noninvasive measurement method of acceleration and deceleration during the expansion process of the blood vessel wall under pulsatile pressure flow by measuring the strain rate of the blood vessel wall using a supersonic Doppler effect sensor aided by computer analysis (DPC method). In this paper, on the basis of the analysis of chaos theory, that is, the complexity of science, the unstable behavior of the blood vessel wall with an aneurysm was investigated by identifying the characteristic DPC wave forms induced by the onset and progression of aneurysm. These results showed that unstable dynamic behavior of the blood vessel wall occurs due to the progression of the aneurysm. Furthermore, using the theoretical analysis of chaos, this unstable behavior of the blood vessel wall was quantified and the fundamental principle of a noninvasive diagnostic method of the progressive degree of aneurysm was proposed.

    Original languageEnglish
    Pages (from-to)163-174
    Number of pages12
    JournalJournal of atherosclerosis and thrombosis
    Volume13
    Issue number4
    DOIs
    Publication statusPublished - 2006

    Keywords

    • Aneurysm
    • Chaos theory
    • Doppler effect sensor
    • Noise science
    • Noninvasive diagnostic method

    ASJC Scopus subject areas

    • Internal Medicine
    • Cardiology and Cardiovascular Medicine
    • Biochemistry, medical

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