A-scan spectral intensity profile in OCT as a potential imaging biomarker of oral precancerous and cancerous tissues

Prashanth Panta; Pawan Kumar; Sachin Sarode; Renu John

doi:10.1117/12.2543949

19 February 2020 A-scan spectral intensity profile in OCT as a potential imaging biomarker of oral precancerous and cancerous tissues

Prashanth Panta, Pawan Kumar, Sachin Sarode, Renu John

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Proceedings Volume 11217, Lasers in Dentistry XXVI; 112170B (2020) https://doi.org/10.1117/12.2543949
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

Optical coherence tomography (OCT) is a powerful imaging modality capable of detecting subtle abnormalities at histological definition. OCT is extremely useful in the detection of epithelial cancers like oral squamous cell carcinoma. Oral squamous cell carcinomas (OSCC) not only demonstrate architectural loss, but also display strong accumulations of keratin, a major tissue biomolecular scatterrer. Our preliminary observations of A-scan intensity data in a contrasting set of oral precancerous, and cancerous tissues have revealed a striking correlation with degree-of-keratinization and histological differentiation grade. This led us to formulate a study aiming to decipher the ‘high-intensity’ data in A-scan plots of normal, oral precancerous and cancerous human tissues. Our further observations in 600 A-scans (300 malignant and 300 non-malignant) suggested a pertinent link between the high-intensity data occurring in A-scan intensity profile and overall distribution of keratin in OSCC.

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Prashanth Panta, Pawan Kumar, Sachin Sarode, and Renu John "A-scan spectral intensity profile in OCT as a potential imaging biomarker of oral precancerous and cancerous tissues", Proc. SPIE 11217, Lasers in Dentistry XXVI, 112170B (19 February 2020); https://doi.org/10.1117/12.2543949

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KEYWORDS

Tissues

Optical coherence tomography

Cancer

Scattering

Connective tissue

Visualization

Biopsy

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