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Implementation of a Coherent Anti-Stokes Raman Scattering CARS System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope
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Metabolic light absorption, scattering, and emission (MetaLASE) microscopy
Brendon S Restall1, Nathaniel J M Haven1, Matthew T Martell1
1Department of Electrical and Computer Engineering, University of Alberta, 116 Street & 85 Avenue, Edmonton, Alberta T6G 2R3, Canada.
Science Advances
|October 18, 2024
Summary
MetaLASE microscopy offers a new way to visualize tissue metabolism and structure simultaneously. This optical imaging technique provides virtual histology and metabolic readouts, aiding disease research and diagnosis.
Area of Science:
- Biomedical Optics
- Molecular Imaging
- Histopathology
Background:
- Current optical imaging lacks detailed histological structure.
- Histology methods lack metabolic contrast.
- Need for integrated metabolic and structural tissue analysis.
Purpose of the Study:
- To introduce Metabolic Light Absorption, Scattering, and Emission (MetaLASE) microscopy.
- To enable simultaneous virtual histology and optical metabolic readout.
- To improve visualization of cellular and tissue metabolic states.
Main Methods:
- Utilized photoacoustic remote sensing for hematoxylin-like nucleic contrast.
- Employed ultraviolet reflectance microscopy for eosin-like cytoplasmic contrast.
- Excited endogenous autofluorescence (NAD(P)H, FAD, collagen) for metabolic mapping using optical redox ratios.
Main Results:
- MetaLASE microscopy achieved simultaneous virtual histology and metabolic imaging.
- Visualized metabolic variations, including in invasive carcinoma.
- Observed hypermetabolism in benign chronic inflammation and glands.
Conclusions:
- MetaLASE microscopy integrates histological and metabolic information.
- Offers potential for intraoperative margin analysis.
- Provides novel research applications for correlating metabolic activity with tissue types.
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