Enhanced visibility through microbubble-induced photoacoustic fluctuation imaging Article Swipe
Related Concepts
Microbubbles
Photoacoustic imaging in biomedicine
Imaging phantom
Materials science
Visibility
Photoacoustic Doppler effect
Contrast (vision)
Optics
Ultrasound
Biomedical engineering
Acoustics
Physics
Medicine
Marco A. Inzunza-Ibarra
,
J. Ángel Navarro-Becerra
,
Venkatalakshmi V. Narumanchi
,
Nick Bottenus
,
Todd W. Murray
,
Mark A. Borden
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2110.12238
· OA: W4286896258
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.48550/arxiv.2110.12238
· OA: W4286896258
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.
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