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Optical coherence hyperspectral microscopy with a single supercontinuum light source.

Wei Chen1,2, Zhongjiang Chen3, Da Xing1,2

  • 1MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, South China Normal University, Guangzhou, China.

Journal of Biophotonics
|May 18, 2021
PubMed
Summary
This summary is machine-generated.

This study introduces a novel optical coherence hyperspectral microscopy combining optical coherence tomography (OCT) and hyperspectral imaging (HSI) for visualizing biological tissue structure and function. The system effectively images oxygen saturation and hemoglobin content alongside tissue morphology in vivo.

Keywords:
hemoglobinhyperspectral imagingoptical coherence tomographyoxygen saturation

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Area of Science:

  • Biomedical Optics
  • Medical Imaging
  • Spectroscopy

Background:

  • Accurate visualization of biological tissue structure and function is crucial for disease diagnosis and treatment.
  • Existing imaging techniques often provide either structural or functional information, necessitating complementary methods.

Purpose of the Study:

  • To develop and validate an optical coherence hyperspectral microscopy system integrating optical coherence tomography (OCT) and hyperspectral imaging (HSI).
  • To assess the system's capability in visualizing both structural and functional characteristics of biological tissues.
  • To evaluate the in vivo performance and potential clinical applications of the developed microscopy.

Main Methods:

  • A single supercontinuum light source was employed for simultaneous OCT and HSI acquisition in the 500 to 700 nm spectral band.
  • Hyperspectral imaging (HSI) was utilized to determine oxygen saturation and hemoglobin content.
  • Optical coherence tomography (OCT) provided high-resolution structural imaging and morphological assessment.

Main Results:

  • The optical coherence hyperspectral microscopy system successfully visualized structural and functional characteristics in normal, 4T1 tumor, and inflamed Balb/c mouse ears.
  • HSI accurately quantified oxygen saturation and hemoglobin levels.
  • OCT provided detailed morphological information of the biological tissues.

Conclusions:

  • The developed optical coherence hyperspectral microscopy offers a powerful tool for multimodal biological tissue analysis.
  • The system demonstrates significant potential for providing complementary information in clinical settings.
  • This integrated approach enhances the understanding of tissue pathophysiology.