A review of Shearwave Dispersion Ultrasound Vibrometry (SDUV) and its applications

Research output: Contribution to journalReview article

53 Scopus citations

Abstract

Measurement of tissue elasticity has emerged as an important advance in medical imaging and tissue characterization. However, soft tissue is inherently a viscoelastic material. One way to characterize the viscoelastic material properties of a material is to measure shear wave propagation velocities within the material at different frequencies and use the dispersion of the velocities, or variation with frequency, to solve for the material properties. Shearwave Dispersion Ultrasound Vibrometry (SDUV) is an ultrasound-based technique that uses this feature to characterize the viscoelastic nature of soft tissue. This method has been used to measure the shear elasticity and viscosity in various types of soft tissues including skeletal muscle, cardiac muscle, liver, kidney, prostate, and arterial vessels. This versatile technique provides measurements of viscoelastic material properties with high spatial and temporal resolution, which can be used for assessing these properties in normal and pathologic tissues. The goals of this paper are to 1) give an overview of viscoelasticity and shear wave velocity dispersion, 2) provide a history of the development of the SDUV method, and 3) survey applications for SDUV that have been previously reported.

Original languageEnglish (US)
Pages (from-to)27-36
Number of pages10
JournalCurrent Medical Imaging Reviews
Volume8
Issue number1
DOIs
StatePublished - Feb 1 2012

Keywords

  • Dispersion
  • Radiation force
  • Shear waves
  • Ultrasound
  • Viscoelasticity
  • Viscosity

ASJC Scopus subject areas

  • Internal Medicine
  • Radiology Nuclear Medicine and imaging

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