Handheld spatial frequency domain spectrographic imager for depth-sensitive, quantitative spectroscopy of skin tissue

Rolf B. Saager; An N. Dang; Samantha S. Huang; Kristen M. Kelly; Anthony J. Durkin

doi:10.1117/12.2252518

17 February 2017 Handheld spatial frequency domain spectrographic imager for depth-sensitive, quantitative spectroscopy of skin tissue

Rolf B. Saager, An N. Dang, Samantha S. Huang, Kristen M. Kelly, Anthony J. Durkin

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Proceedings Volume 10037, Photonics in Dermatology and Plastic Surgery; 1003703 (2017) https://doi.org/10.1117/12.2252518
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

Here we present a handheld, implementation of Spatial Frequency Domain Spectroscopy (SFDS) that employs line imaging. The new instrument can measure 1088 spatial locations that span a 3 cm line as opposed to our benchtop system that only collects a single 1 mm diameter spot. This imager, however, retains the spectral resolution (~ 1 nm) and range (450 to 1000 nm) of our benchtop system. The device also has tremendously improved mobility and portability, allowing for greater ease of use in clinical setting. A smaller size also enables access to different tissue locations, which increases the flexibility of the device. The design of this portable system not only enables SFDS to be used in clinical settings, but also enables visualization of properties of layered tissues such as skin.

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Rolf B. Saager, An N. Dang, Samantha S. Huang, Kristen M. Kelly, and Anthony J. Durkin "Handheld spatial frequency domain spectrographic imager for depth-sensitive, quantitative spectroscopy of skin tissue", Proc. SPIE 10037, Photonics in Dermatology and Plastic Surgery, 1003703 (17 February 2017); https://doi.org/10.1117/12.2252518

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KEYWORDS

Imaging systems

Projection systems

Tissue optics

Spectroscopy

Tissues

Skin

Imaging spectroscopy

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