Presentation
27 April 2016 1300 nm and 890 nm OCT images of oral cancer tissue engineered models and biopsy samples offer complimentary performance (Conference Presentation)
Joseph Boadi, Robert A. Byers, Jon Fernandes, Shweta Mittar, Vanessa Hearnden, Zenghai Lu, Sheila MacNeil, Martin Thornhill, Craig Murdoch, Keith D. Hunter, Alasdair McKechnie, Stephen J. Matcher
Author Affiliations +
Abstract
OCT has demonstrated great potential to non-invasively detect oral epithelial cancers, potentially guiding biopsy and surgical resection. On non-ophthalmic tissues the preferred illumination wavelength is 1300 nm. Previous studies on skin have shown that useful image data can also be obtained at shorter wavelengths, with systems at 1060 nm and 820 nm offering reduced depth penetration but higher contrast. Here we apply a similar comparison to tissue engineered models of oral cancer and also to human biopsy samples, generally finding a similar trend. 1300 nm multi-beam OCT (Michelson Diagnostics EX1301) visualises stromal structures and surface keratin more clearly, providing useful image contrast down to around 1 mm. This system was compared with an ultra-high resolution home-built system operating at 890 nm (2.5 micron resolution vs 7.5 micron axial resolution for the EX1301). The UHR system reveals epithelial features more clearly, especially in the DOK pre-invasive cell line model and the biopsy samples. The relative effects of center wavelength vs axial resolution in generating the differential, wavelength-dependent contrast are assessed and the OCT biopsy images are compared with contemporary histology.
Conference Presentation
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joseph Boadi, Robert A. Byers, Jon Fernandes, Shweta Mittar, Vanessa Hearnden, Zenghai Lu, Sheila MacNeil, Martin Thornhill, Craig Murdoch, Keith D. Hunter, Alasdair McKechnie, and Stephen J. Matcher "1300 nm and 890 nm OCT images of oral cancer tissue engineered models and biopsy samples offer complimentary performance (Conference Presentation)", Proc. SPIE 9689, Photonic Therapeutics and Diagnostics XII, 96891Z (27 April 2016); https://doi.org/10.1117/12.2209310
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KEYWORDS
Biopsy

Optical coherence tomography

Cancer

Statistical modeling

Tissues

Tumor growth modeling

Performance modeling

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