Presentation
13 March 2024 A new biomarker for metastatic melanoma based on femtosecond pump-probe microscopy and supervised learning
Author Affiliations +
Abstract
Melanoma is responsible for around 10,000 deaths annually in the US. While simple excision can cure most melanomas, some progress into metastatic cancer, necessitating advanced treatment options. However, the current clinical diagnosis methods are insufficient in accurately identifying metastasis. There is a need for better biomarkers for patients at risk of developing metastases to enable timely intervention and appropriate treatment. We present a biomarker based on femtosecond pump-probe microscopy and supervised learning techniques to diagnose metastatic melanoma. Pump-probe microscopy images of primary melanomas reveal the chemical and physical structure of melanin, a naturally occurring pigment in most melanoma tumors. Leveraging supervised learning models, we classify melanin features and utilize them to guide the diagnosis of metastatic disease. Our proposed biomarker is compatible with the current clinical protocol, as it only requires a slice of the primary tumor, which is routinely excised following clinical guidelines. In our preliminary dataset of approximately 50 patients, the biomarker demonstrates encouraging sensitivity and specificity, exceeding 80%.
Conference Presentation
© (2024) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David Grass, Angelica M. Selim, Georgia M. Beasley, Martin C. Fischer, and Warren S. Warren "A new biomarker for metastatic melanoma based on femtosecond pump-probe microscopy and supervised learning", Proc. SPIE PC12816, Photonics in Dermatology and Plastic Surgery 2024, PC128160K (13 March 2024); https://doi.org/10.1117/12.2691938
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KEYWORDS
Melanoma

Machine learning

Microscopy

Femtosecond phenomena

Tumors

Skin cancer

Gold

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