1Simon Fraser Univ. (Canada) 2British Columbia Cancer Research Institute (Canada) 3BC Cancer Research Institute (Canada) 4The Univ. of British Columbia (Canada)
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Fluorophores associated with early development of cancer (FAD, NADH, collagen) and abnormalities in microvessel structure have been shown to correlate with oral cancer progression. Co-registered imaging approaches using optical coherence tomography (OCT) and fluorescence imaging techniques have demonstrated promise in assessing these biomarkers, but current endoscopic approaches are limited in specificity. We propose that a micromotor-based OCT angiography and fluorescence-lifetime imaging microscopy (FLIM) may provide a suitable biopsy guidance tool for oral cancer screening. We present initial work towards implementing these modalities with a micromotor catheter system, validated with phantoms. Performance is compared to our existing OCT-autofluorescence system.
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Eric Brace, Scott Bernard, Jeanie Malone, Adrian Tanskanen, Anthony Lee, Catherine Poh, Pierre Lane, "Micromotor OCTA-FLIM catheter for cancer screening," Proc. SPIE PC11937, Endoscopic Microscopy XVII, PC1193706 (7 March 2022); https://doi.org/10.1117/12.2609113