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Paritosh Pande1, Ryan L Shelton1, Guillermo L Monroy2

  • 1Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA.

Biomedical Optics Express
|January 20, 2017
PubMed
Summary
This summary is machine-generated.

We developed a low-cost, hand-held linear optical coherence tomography (Linear OCT) system for medical imaging. This simpler alternative to conventional OCT offers a cost-effective solution for specific applications.

Keywords:
(110.3175) Interferometric imaging(170.0110) Imaging systems(170.4500) Optical coherence tomography

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Area of Science:

  • Biomedical Optics
  • Medical Imaging Technology

Background:

  • Optical Coherence Tomography (OCT) is a powerful imaging technique.
  • Conventional OCT systems can be complex and expensive.
  • Linear OCT offers a simpler alternative.

Purpose of the Study:

  • To develop a low-cost, hand-held Linear OCT imaging system.
  • To validate the performance of the developed system.
  • To assess its suitability for specific imaging applications.

Main Methods:

  • Development of a bench-top Linear OCT system.
  • Validation of axial resolution, SNR, and sensitivity roll-off.
  • Creation of two hand-held probe implementations.
  • Comparison with a state-of-the-art Fourier-domain LCI system.

Main Results:

  • The bench-top system achieved 5.2 μm axial resolution, 80 dB SNR, and 3.7 dB sensitivity roll-off over 0.15 mm.
  • Hand-held probes were developed for contact and in vivo imaging.
  • Performance was comparable to research-grade systems for certain applications.

Conclusions:

  • The developed low-cost, hand-held Linear OCT system is a viable option.
  • It offers a trade-off between imaging depth/SNR and cost/simplicity.
  • Suitable for applications prioritizing affordability and simpler optical design.