Enhanced visibility through microbubble-induced photoacoustic fluctuation imaging
arXiv:2110.12238 · doi:10.1121/10.0009129
Abstract
A photoacoustic contrast mechanism is presented based on the photoacoustic fluctuations induced by microbubbles flowing inside a micro vessel filled with a continuous absorber. It is demonstrated that the standard deviation of a homogeneous absorber mixed with microbubbles increases non-linearly as the microbubble concentration and microbubble size is increased. This effect is then utilized to perform photoacoustic fluctuation imaging with increased visibility and contrast of a blood flow phantom.
arXiv comment12 pages
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