alexa Blood velocity measurements in human retinal vessels.


Anatomy & Physiology: Current Research

Author(s): Tanaka T, Riva C, BenSira B

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Abstract Laser Doppler velocimetry was used to measure the velocity of blood in human retinal vessels. The mean flow velocities obtained were 1.9 centimeters per second in a retinal vein and 2.2 centimeters per second in a retinal artery. Scattered light from a weak helium-neon laser beam focused on the vessel was detected by a photomultiplier, and the temporal correlation of the intensity fluctuations was measured with a photon counting autocorrelator. Autocorrelation functions for blood flowing through glass capillaries were used for calibration.
This article was published in Science and referenced in Anatomy & Physiology: Current Research

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