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Applied Optics

Applied Optics


  • Vol. 39, Iss. 16 — Jun. 1, 2000
  • pp: 2823–2830

Blood-flow measurements with a small number of scattering events

Pavel Starukhin, Sergey Ulyanov, Ekaterina Galanzha, and Valery Tuchin  »View Author Affiliations

Applied Optics, Vol. 39, Issue 16, pp. 2823-2830 (2000)

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Results of simulations of the diffraction of a laser beam by a small blood vessel imbedded in scattering tissue are presented. The form of the spectra of biospeckle intensity fluctuations is analyzed. The Doppler shift of intensity fluctuations of scattered light is investigated as a function of the laser beam radius, the radius of the blood vessel, the depth of the vessel in the tissue, and the scattering characteristics of flowing blood. A formula that serves as the basis for a method of absolute measurements of blood-flow velocity is derived.

© 2000 Optical Society of America

OCIS Codes
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(170.3340) Medical optics and biotechnology : Laser Doppler velocimetry
(290.0290) Scattering : Scattering
(290.4210) Scattering : Multiple scattering

Original Manuscript: July 23, 1999
Revised Manuscript: January 3, 2000
Published: June 1, 2000

Pavel Starukhin, Sergey Ulyanov, Ekaterina Galanzha, and Valery Tuchin, "Blood-flow measurements with a small number of scattering events," Appl. Opt. 39, 2823-2830 (2000)

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