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3 March 2022 Quantitative assessment of peripheral vasculature using a 3D bimodal photoacoustic and ultrasound foot scanner
Wonseok Choi, Joongho Ahn, Changyeop Lee, Moongyu Han, Eunyeong Park, Byullee Park, Seonghee Cho, Seungwan Jeon, Yeoree Yang, Jae-Hyoung Cho, Chulhong Kim
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Proceedings Volume 11960, Photons Plus Ultrasound: Imaging and Sensing 2022; 1196002 (2022) https://doi.org/10.1117/12.2609129
Event: SPIE BiOS, 2022, San Francisco, California, United States
Abstract
Peripheral vascular disease (PVD) is a narrowing of the arteries in the extremities that might result in amputation when left untreated. The conventional ways to diagnose PVD are vascular imaging techniques such as ultrasound (US) Doppler, computed tomography (CT) angiography, and magnetic resonance angiography, which generally can only visualize large vessels or require contrast agents. Photoacoustic (PA) imaging could be a promising agent-free, highresolution modality to visualize vessels and be applied in various clinical studies. We have previously demonstrated an agent-free multi-structural photoacoustic (PA) and US peripheral angiography technique using contour scanning. To reduce the effect of the optical fluence, we compensated the PA images using the background PA signals that represent optical attenuation in the tissue. To evaluate its capability to provide functional information of the vasculature, we demonstrated an intentional blood flow occlusion with a pressure cuff and observed the changes in the quantification metrics. From the experiments, we confirmed the potential of the technique for providing a diagnostic evaluation of the peripheral vasculature.
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Wonseok Choi, Joongho Ahn, Changyeop Lee, Moongyu Han, Eunyeong Park, Byullee Park, Seonghee Cho, Seungwan Jeon, Yeoree Yang, Jae-Hyoung Cho, and Chulhong Kim "Quantitative assessment of peripheral vasculature using a 3D bimodal photoacoustic and ultrasound foot scanner", Proc. SPIE 11960, Photons Plus Ultrasound: Imaging and Sensing 2022, 1196002 (3 March 2022); https://doi.org/10.1117/12.2609129
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KEYWORDS
Ultrasonography
Imaging systems
3D scanning
3D image processing
Oxygen
Visualization
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