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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
PublisherPubl by Alliance for Engineering in Medicine & Biology
Pages1741-1743
Number of pages3
Volume11 pt 6
Publication statusPublished - 1989
EventImages 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
Duration: 1989 Nov 91989 Nov 12

Other

OtherImages of the Twenty-First Century - Proceedings of the 11th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. Part 2
CitySeattle, WA, USA
Period89/11/989/11/12

Fingerprint

Velocity measurement
Spectrum analysis
Blood
Lasers
Cells
Power spectrum
Phase shift
Fast Fourier transforms
Rats

ASJC Scopus subject areas

  • Bioengineering
  • Engineering(all)

Cite this

Okada, E., Fukuoka, Y., Umetani, J., Sekizuka, E., Oshio, C., & Minamitani, H. (1989). Spectrum analysis of fluctuations of RBC velocity in microvessels by using microscopic laser Doppler velocimetry. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings (Vol. 11 pt 6, pp. 1741-1743). Publ by Alliance for Engineering in Medicine & Biology.

Spectrum analysis of fluctuations of RBC velocity in microvessels by using microscopic laser Doppler velocimetry. / Okada, Eiji; Fukuoka, Yutaka; Umetani, Jun; Sekizuka, Eiichi; Oshio, Chikara; Minamitani, Haruyuki.

Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 11 pt 6 Publ by Alliance for Engineering in Medicine & Biology, 1989. p. 1741-1743.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Okada, E, Fukuoka, Y, Umetani, J, Sekizuka, E, Oshio, C & Minamitani, H 1989, Spectrum analysis of fluctuations of RBC velocity in microvessels by using microscopic laser Doppler velocimetry. in Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. vol. 11 pt 6, Publ by Alliance for Engineering in Medicine & Biology, pp. 1741-1743, 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, 89/11/9.
Okada E, Fukuoka Y, Umetani J, Sekizuka E, Oshio C, Minamitani H. Spectrum analysis of fluctuations of RBC velocity in microvessels by using microscopic laser Doppler velocimetry. In Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 11 pt 6. Publ by Alliance for Engineering in Medicine & Biology. 1989. p. 1741-1743
Okada, Eiji ; Fukuoka, Yutaka ; Umetani, Jun ; Sekizuka, Eiichi ; Oshio, Chikara ; Minamitani, Haruyuki. / Spectrum analysis of fluctuations of RBC velocity in microvessels by using microscopic laser Doppler velocimetry. Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings. Vol. 11 pt 6 Publ by Alliance for Engineering in Medicine & Biology, 1989. pp. 1741-1743
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abstract = "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.",
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