Shortwave infrared (SWIR) spatial frequency domain imaging (SFDI) for monitoring optical property changes in blood after a high fat meal

Anahita Pilvar; Matthew Applegate; Mark Pierce; Darren Roblyer

doi:10.1117/12.2577234

5 March 2021 Shortwave infrared (SWIR) spatial frequency domain imaging (SFDI) for monitoring optical property changes in blood after a high fat meal

Anahita Pilvar, Matthew Applegate, Mark Pierce, Darren Roblyer

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Proceedings Volume 11639, Optical Tomography and Spectroscopy of Tissue XIV; 116391A (2021) https://doi.org/10.1117/12.2577234
Event: SPIE BiOS, 2021, Online Only

Abstract

Regular blood lipid screening is recommended for those suffering from cardiovascular disease (CVD). Current blood lipid measurements require invasive blood draws and lab-based testing. We introduce here shortwave infrared spatial frequency domain imaging (SWIR SFDI) as a non-invasive technique for blood lipid monitoring. We will report results from an analysis of SFDI measurement parameters (spatial frequency, wavelength, etc.) and light propagation models that result in accurate optical properties and chromophore extractions in the SWIR. Additionally, we will present results from a healthy volunteer study of longitudinal postprandial blood lipid changes measured in superficial blood vessels with SWIR SFDI.

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Anahita Pilvar, Matthew Applegate, Mark Pierce, and Darren Roblyer "Shortwave infrared (SWIR) spatial frequency domain imaging (SFDI) for monitoring optical property changes in blood after a high fat meal", Proc. SPIE 11639, Optical Tomography and Spectroscopy of Tissue XIV, 116391A (5 March 2021); https://doi.org/10.1117/12.2577234

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KEYWORDS

Short wave infrared radiation

Blood

Optical properties

Infrared radiation

Shortwaves

Infrared imaging

Absorption

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