Spectrum analysis of fluctuations of RBC velocity in microvessels by using microscopic laser Doppler velocimetry

Eiji Okada, Yutaka Fukuoka, Jun Umetani, Eiichi Sekizuka, Chikara Oshio, Haruyuki Minamitani

    研究成果: Conference article査読

    2 被引用数 (Scopus)

    抄録

    The velocity of red blood cells (RBCs) in microvessels of rat mesentery was measured using microscopic laser Doppler velocimetry. In order to estimate the periodicity of the RBC velocity fluctuation accurately, the power spectrum of the velocity was calculated by means of the fast Fourier transform. The amplitude of the pulsatile component was quite large in the spectrum of the RBC velocity fluctuation in arterioles. On the other hand, RBC velocity in venule intermingled the different frequency components. The velocity of the phase shift of the pulsatile component of RBC velocity was estimated by using the cross-spectrum analysis. The propagational velocity of the RBC velocity profiles in arterioles was slower than that of the pulse wave in larger vessels.

    本文言語English
    ページ(範囲)1741-1743
    ページ数3
    ジャーナルAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
    11 pt 6
    出版ステータスPublished - 1989 12月 1
    イベントImages of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 2 - Seattle, WA, USA
    継続期間: 1989 11月 91989 11月 12

    ASJC Scopus subject areas

    • 信号処理
    • 生体医工学
    • コンピュータ ビジョンおよびパターン認識
    • 健康情報学

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