Quantifying photoacoustic model utilizing blood as a fluence marker for carotid plaque composition imaging

Max T. Rietberg; Anjali Thomas; Kalloor Joseph Francis

doi:10.1117/12.3002698

13 March 2024 Quantifying photoacoustic model utilizing blood as a fluence marker for carotid plaque composition imaging

Max T. Rietberg, Anjali Thomas, Kalloor Joseph Francis

Author Affiliations +

Proceedings Volume PC12842, Photons Plus Ultrasound: Imaging and Sensing 2024; PC128422X (2024) https://doi.org/10.1117/12.3002698
Event: SPIE BiOS, 2024, San Francisco, California, United States

Conference Poster

Abstract

Unstable plaques in the carotid artery are a leading cause of ischemic stroke, resulting in numerous deaths globally. A reliable predictor of rupture risk is plaque composition. Photoacoustic Imaging is a promising imaging modality suitable for this task. Quantifying Photoacoustic Imaging poses challenges as it requires knowledge of complex light propagation in tissue. Our approach utilizes arterial blood as a fluence marker to determine the optical properties of the plaque. This proposed method involves optical and acoustic modeling and iterative updating of the optical properties. We characterized the proposed technique by varying different parameters in digital phantoms.

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Max T. Rietberg, Anjali Thomas, and Kalloor Joseph Francis "Quantifying photoacoustic model utilizing blood as a fluence marker for carotid plaque composition imaging", Proc. SPIE PC12842, Photons Plus Ultrasound: Imaging and Sensing 2024, PC128422X (13 March 2024); https://doi.org/10.1117/12.3002698

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