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Lymph vessels visualization from optical coherence tomography data using depth-resolved attenuation coefficient

Alexander A Moiseev1, Marina A Sirotkina2, Arseny L Potapov2

  • 1Institute of Applied Physics RAS, Nizhny Novgorod, Russia.

Journal of Biophotonics
|May 31, 2021
PubMed
Summary
This summary is machine-generated.

This study enhances lymphatic vessel visualization using optical coherence tomography (OCT) by employing depth-resolved attenuation coefficients. This improved method offers better contrast and detail for lymphatic imaging compared to existing techniques.

Keywords:
lymphatic vessels visualizationmultimodal OCToptical coherence tomographysignal processing

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Area of Science:

  • Biomedical Optics
  • Medical Imaging
  • Vascular Biology

Background:

  • Multimodal optical coherence tomography (OCT) is increasingly utilized in research and clinical settings.
  • Lymphangiography, a modality within OCT, enables visualization of lymphatic vessel networks.
  • Existing OCT lymphangiography methods have limitations in contrast and detail.

Purpose of the Study:

  • To improve lymphatic vessel visualization in OCT imaging.
  • To present a novel approach for enhanced contrast and detail in lymphangiography.
  • To compare different visualization techniques for lymphatic networks.

Main Methods:

  • Utilized depth-resolved attenuation coefficient distributions for lymphatic vessel visualization.
  • Applied noise correction to the attenuation coefficient data.
  • Compared the proposed method with simple intensity thresholding and vesselness calculation based on local Hessian matrix eigenvalues.

Main Results:

  • The proposed method, using corrected depth-resolved attenuation coefficients, demonstrated improved contrast and detail in visualizing lymphatic vessels.
  • Analysis revealed that intensity thresholding and vesselness calculations define lymphatic vessels differently in OCT volumes.
  • These differing definitions lead to distinct network visualizations.

Conclusions:

  • Depth-resolved attenuation coefficient distributions, when corrected for noise, offer a superior method for OCT lymphangiography.
  • The choice of visualization technique significantly impacts the resulting lymphatic network representation.
  • Further investigation into the implications of different visualization definitions is warranted.