24 February 2009 M-mode photoacoustic flow imaging
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Abstract
Recently, there has been a growing interest in the development of photoacoustic flow measuring methods aimed to study microvascular blood flow in deep tissue. Here, we describe a method of M-mode photoacoustic flow imaging, where a photoacoustic microscope equipped with a high repetition rate pulsed dye laser is used. As a demonstration, we studied the flow of a diluted suspension of carbon glassy particles in a small tube, and extracted the flow profile. Potentially, the method can be applied to detect the blood flow in microvessels either directly or by injecting optically absorbing particles.
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Hui Fang, Hui Fang, Konstantin Maslov, Konstantin Maslov, Lihong V. Wang, Lihong V. Wang, } "M-mode photoacoustic flow imaging", Proc. SPIE 7177, Photons Plus Ultrasound: Imaging and Sensing 2009, 71772M (24 February 2009); doi: 10.1117/12.810159; https://doi.org/10.1117/12.810159
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