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Updated: May 25, 2026

Using Digital Image Correlation to Characterize Local Strains on Vascular Tissue Specimens
09:29

Using Digital Image Correlation to Characterize Local Strains on Vascular Tissue Specimens

Published on: January 24, 2016

Tissue deformation analysis using a laser based digital image correlation technique.

Johannes Kerl1, Tassanai Parittotokkaporn, Luca Frasson

  • 1Department of Mechanical Engineering, Imperial College London, London, SW7 2AZ, United Kingdom.

Journal of the Mechanical Behavior of Biomedical Materials
|February 4, 2012
PubMed
Summary
This summary is machine-generated.

A new laser-based method measures tissue deformation in transparent materials with high resolution. This technique tracks embedded particles to analyze material strain without needing in situ hardware.

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Area of Science:

  • Biomedical Engineering
  • Materials Science
  • Optical Measurement Techniques

Background:

  • Accurate measurement of tissue deformation is crucial for understanding material behavior under load.
  • Existing methods for measuring material strain may require invasive hardware or lack sufficient spatial and temporal resolution.

Purpose of the Study:

  • To develop and demonstrate a non-invasive, laser-based technique for planar, time-resolved measurements of tissue deformation.
  • To achieve high spatial resolution in deformation analysis within transparent biomedical materials.

Main Methods:

  • A laser light sheet illuminates embedded micrometer particles within a semi-transparent sample.
  • A digital camera records particle displacement patterns as the sample undergoes external loading.
  • Image analysis quantifies local and temporal sample deformation and material strain.

Main Results:

  • The developed technique provides high spatial resolution, time-resolved measurements of tissue deformation.
  • The method successfully determined tissue deformation and material strain during simulated needle insertion.
  • No in situ measurement hardware was required, simplifying the experimental setup.

Conclusions:

  • The laser-based particle tracking method is effective for measuring deformation in transparent biomedical materials.
  • This technique offers a non-invasive approach for analyzing material strain in complex scenarios like probe insertion.
  • The method has potential applications in biomechanics and material characterization.