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Time-resolved fluorescence lifetime for cutaneous melanoma detection.
Layla Pires1, Marcelo Saito Nogueira1, Sebastião Pratavieira1
1Universidade de São Paulo, Instituto de Física de São Carlos - IFSC/USP, Av. Trabalhador São Carlense,400 - São Carlos, SP, Brazil.
Biomedical Optics Express
|November 18, 2014
Summary
This study explores fluorescence spectroscopy for early melanoma detection. Time-resolved measurements of NADH and FAD show high accuracy in identifying skin cancer, improving patient outcomes.
Area of Science:
- Oncology
- Biophysics
- Medical Diagnostics
Background:
- Melanoma is an aggressive skin cancer with high metastatic potential.
- Early detection is crucial for improving patient prognosis and survival rates.
- Current diagnosis relies on visual inspection (ABCD rules), which has limitations.
Purpose of the Study:
- To evaluate time-resolved fluorescence lifetime spectroscopy for cutaneous melanoma detection.
- To assess the potential of using NADH and FAD fluorescence signals for early diagnosis.
- To establish a novel, non-invasive method for melanoma identification.
Main Methods:
- Analysis of time-resolved fluorescence lifetime of NADH and FAD molecules.
- Utilizing an experimental in vivo model for cutaneous melanoma.
- Classification of data using linear discriminant analysis on 42 lesions.
Main Results:
- Achieved a sensitivity of 99.4% for melanoma detection.
- Demonstrated a specificity of 97.4% in classifying lesions.
- Reported an overall accuracy of 98.4% using fluorescence spectroscopy.
Conclusions:
- Fluorescence spectroscopy shows significant potential as a diagnostic tool for cutaneous melanoma.
- Time-resolved fluorescence lifetime measurements offer a promising non-invasive approach.
- This technique could enhance early detection and improve melanoma patient outcomes.
