Feasibility of partially-coherent wide-field laser speckle-based imaging for deep perfusion visualization in assisted intravenous access

Giulia Mansutti; Martin Villiger; Brett E. Bouma; Néstor Uribe-Patarroyo

doi:10.1117/12.2610192

3 March 2022 Feasibility of partially-coherent wide-field laser speckle-based imaging for deep perfusion visualization in assisted intravenous access

Giulia Mansutti, Martin Villiger, Brett E. Bouma, Néstor Uribe-Patarroyo

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Proceedings Volume PC11974, Biomedical Applications of Light Scattering XII; PC119740C (2022) https://doi.org/10.1117/12.2610192
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

We present the first feasibility study of a new optical device for assisted venipuncture based on partially-coherent wide-field speckle decorrelation. Using a pseudo-thermal light source, we can vary the degree of spatial coherence, in order to change the ratio of singly- to multiply-scattered light detected by the system. This leads to an improvement in the localization of the decorrelation contrast, and therefore in the delineation of deep veins, as compared to conventional laser speckle imaging (LSI) systems. The results obtained so far make us believe that our spatial coherence-gated LSI imaging architecture can find widespread application beyond venipuncture.

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Giulia Mansutti, Martin Villiger, Brett E. Bouma, and Néstor Uribe-Patarroyo "Feasibility of partially-coherent wide-field laser speckle-based imaging for deep perfusion visualization in assisted intravenous access", Proc. SPIE PC11974, Biomedical Applications of Light Scattering XII, PC119740C (3 March 2022); https://doi.org/10.1117/12.2610192

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KEYWORDS

Speckle imaging

Visualization

Cameras

Quantum efficiency

Silicon

Spatial coherence

Veins

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