Differential phase analysis for high frame rate photoacoustic vector flow imaging

Sophinese Iskander-Rizk; Reza Pakdaman Zangabad; Pieter Kruizinga; Antonius F. W. van der Steen; Gijs van Soest

doi:10.1117/12.2578778

7 March 2021 Differential phase analysis for high frame rate photoacoustic vector flow imaging

Sophinese Iskander-Rizk, Reza Pakdaman Zangabad, Pieter Kruizinga, Antonius F. W. van der Steen, Gijs van Soest

Proceedings Volume 11642, Photons Plus Ultrasound: Imaging and Sensing 2021; 116420K (2021) https://doi.org/10.1117/12.2578778
Event: SPIE BiOS, 2021, Online Only

Conference Poster

Abstract

Blood flow can be a crucial diagnostic parameter for different pathologies. Photoacoustic imaging, unlike other imaging modalities, could play a role in enhancing blood flow measurements in smaller vessels without resorting to contrast agents. In this study, we show that differential phase analysis on photoacoustic signals acquired at a high frame rate (2 kHz) generated from flowing absorbers provides a good estimate of their velocities. Flow phantoms based on diluted Indian ink solutions with preset velocities ranging between 6 and 19 mm/s were imaged and profiled based on this method.

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Citation Download Citation

Sophinese Iskander-Rizk, Reza Pakdaman Zangabad, Pieter Kruizinga, Antonius F. W. van der Steen, and Gijs van Soest "Differential phase analysis for high frame rate photoacoustic vector flow imaging", Proc. SPIE 11642, Photons Plus Ultrasound: Imaging and Sensing 2021, 116420K (7 March 2021); https://doi.org/10.1117/12.2578778

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