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Rowan W Sanderson1,2, Andrea Curatolo1,2,3, Philip Wijesinghe1,2,4

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Summary
This summary is machine-generated.

This study introduces a wearable finger-mounted quantitative micro-elastography (QME) probe for biological tissue elasticity measurement. This novel device utilizes optical coherence tomography for precise, tactile-guided assessments, enhancing diagnostic capabilities.

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Area of Science:

  • Biomedical Engineering
  • Medical Imaging
  • Biophysics

Background:

  • Assessing biological tissue elasticity is crucial for disease diagnosis.
  • Existing elastography methods can be cumbersome and lack tactile feedback.
  • Wearable, dexterous probes are needed for improved tissue characterization.

Purpose of the Study:

  • To develop and demonstrate a novel finger-mounted quantitative micro-elastography (QME) probe.
  • To enable tactile-guided, wearable elastography using optical coherence tomography (OCT).
  • To measure tissue elasticity with high precision and adaptability.

Main Methods:

  • Fabrication of a finger-mounted probe using 3D printing and fused fiber optics.
  • Integration of OCT for measuring tissue deformation under finger-induced compression.
  • Development of signal processing to mitigate motion artifacts and calculate elasticity.

Main Results:

  • Demonstrated successful elasticity measurements on various phantoms (homogeneous, bi-layer, inclusion).
  • Quantified thermally-induced elasticity changes in ex vivo muscle tissue.
  • Achieved 2D imaging by swiping the probe, showcasing its practical application.

Conclusions:

  • The finger-mounted QME probe offers a novel, wearable solution for tissue elasticity assessment.
  • The device integrates tactile feedback with OCT-based elastography for enhanced diagnostics.
  • This technology has potential for non-invasive, point-of-care tissue characterization.