Journal
OPTICS EXPRESS
Volume 16, Issue 22, Pages 18551-18556Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.16.018551
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Funding
- NIH [R01 EB000712, R01 NS46214]
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Non-invasive visualization of cardiovascular dynamics in small animals is challenging due to their rapid heart-rates. We present a realtime photoacoustic imaging system consisting of a 30-MHz ultrasound array transducer, receive electronics, a high-repetition-rate laser, and a multicore-computer, and demonstrate its ability to image optically-absorbing structures of the beating hearts of young athymic nude mice at rates of similar to 50 frames per second with 100 mu m x 25 mu m spatial resolution. To our knowledge this is the first report of realtime photoacoustic imaging of physiological dynamics. (C) 2008 Optical Society of America
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