Cuffing-based photoacoustic flowmetry in humans at depths in the diffusive regime

Yong Zhou; Jinyang Liang; Lihong V. Wang

doi:10.1117/12.2217467

15 March 2016 Cuffing-based photoacoustic flowmetry in humans at depths in the diffusive regime

Yong Zhou, Jinyang Liang, Lihong V. Wang

Proceedings Volume 9708, Photons Plus Ultrasound: Imaging and Sensing 2016; 970847 (2016) https://doi.org/10.1117/12.2217467
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

Using a handheld photoacoustic probe, we proposed a cuffing-based method to quantify blood flow speed in humans. By cuffing and releasing the blood vessel, we can measure the blood flow speed downstream. In phantom experiments, we demonstrated that the minimum and maximum measurable flow speeds were 0.035 mm/s and 42 mm/s, respectively. In human experiments, flow speeds were measured in three different blood vessels: a radial artery in the right forearm, a radial artery in the index finger of the right hand, and a radial vein in the right forearm.

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Yong Zhou, Jinyang Liang, and Lihong V. Wang "Cuffing-based photoacoustic flowmetry in humans at depths in the diffusive regime", Proc. SPIE 9708, Photons Plus Ultrasound: Imaging and Sensing 2016, 970847 (15 March 2016); https://doi.org/10.1117/12.2217467

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KEYWORDS

Blood circulation

Blood

Signal detection

Arteries

Blood vessels

Acquisition tracking and pointing

Veins

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