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Updated: Mar 8, 2026

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A surface wave elastography technique for measuring tissue viscoelastic properties.

Xiaoming Zhang1

  • 1Department of Radiology, Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA.

Medical Engineering & Physics
|February 5, 2017
PubMed
Summary
This summary is machine-generated.

Surface wave elastography non-invasively measures skin viscoelastic properties. Temperature affects wave speed, while decay significantly alters both speed and viscoelastic ratio in porcine tissues.

Keywords:
Surface wave elastographyTemperature effectTissue decayViscoelastic ratioWave attenuationWave speed

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Area of Science:

  • Biomedical Engineering
  • Materials Science

Background:

  • Understanding skin's viscoelastic properties is crucial for various applications.
  • Non-invasive methods are needed to assess tissue changes.

Purpose of the Study:

  • To propose and validate a surface wave elastography method for skin viscoelasticity.
  • To investigate the impact of temperature and tissue decay on these properties.

Main Methods:

  • Surface wave elastography was used to measure wave speed and attenuation on porcine skin.
  • Phase change and amplitude decay with distance quantified wave speed and attenuation.
  • Experiments were conducted at room (22°C) and body (33°C) temperatures, and on fresh vs. decayed tissues.

Main Results:

  • Wave speed decreased from 1.83 m/s at 22°C to 1.52 m/s at 33°C.
  • The viscoelastic ratio remained relatively constant between 22°C and 33°C.
  • Decayed tissue showed increased wave speed (2.73 m/s) and a higher viscoelastic ratio (0.412/mm) compared to fresh tissue (0.215/mm).

Conclusions:

  • Surface wave elastography is a viable method for assessing skin viscoelasticity.
  • Temperature has a noticeable effect on wave speed, but less on the viscoelastic ratio.
  • Tissue decay significantly alters mechanical properties, indicating potential for monitoring tissue health.