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Published February 13, 2007 | Published
Book Section - Chapter Open

Imaging microvascular dynamics noninvasively with realtime photoacoustic microscopy


A realtime photoacoustic microscopy system consisting of a high-repetition rate pulsed laser, high-frequency (30 MHz) ultrasound array transducer, and realtime receiving system was used to visualize microvessels pulsations over a cardiac cycle. The system offers 100 μm lateral spatial resolution, 25 µm axial spatial resolution, and can image at a rate of 83 frames per second. The system shows promise for visualizing time-varying processes in the microvasculature.

Additional Information

© 2007 Society of Photo-Optical Instrumentation Engineers (SPIE). This project was sponsored by NIH grants R01 EB000712 and R01 NS46214.

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August 19, 2023
January 14, 2024