Ultrasound imaging of soft tissue shear viscosity

Salavat R. Aglyamov, Suhyun Park, Yurii A. Ilinskii, Stanislav Y. Emelianov

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations


Changes in tissue mechanical (elasticity, viscosity, etc.) properties are often associated with tissue pathology. In this paper, we present an ultrasound method capable of imaging the shear viscosity of soft tissue. This method is based on the measurement of creep function where tissue viscosity can be assessed by measuring slowly varying residual mechanical deformations induced by steady external forces rapidly applied at the surface. A finite element analysis of internal deformations of inhomogeneous viscoelastic medium was performed to investigate the capabilities of viscosity imaging. Then the ultrasound measurements of creep function were performed in the tissue sample (bovine muscle) to remotely assess viscoelastic properties of the tissue. The results of numerical and experimental studies suggest that time-dependent deformations can be measured with ultrasound to estimate and image both tissue elasticity and viscosity.

Original languageEnglish
Pages (from-to)937-940
Number of pages4
JournalProceedings of the IEEE Ultrasonics Symposium
StatePublished - 2003
Event2003 IEEE Ultrasonics Symposium - Proceedings - Honolulu, HI, United States
Duration: 5 Oct 20038 Oct 2003


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