Ultrasonic scattering in deformed media and the effects on strain imaging

Michael Insana, Tim Hall, Pawan Chaturvedi

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Acoustic properties of tissue-like media with stiff and soft scatterers were measured as a function of compressive strain up to 40%. Uniaxial strain measurements were analyzed to test the assumption that local properties of wave propagation and scattering are invariant under deformation. We found that echo spectra of gel media with soft scatterers varied significantly and predictably during compression. Specifically, centroids of Gaussian echo spectra were shifted to higher frequencies in proportion to the compressive strain applied up to 10%, and increased monotonically up to 40% at a rate depending on the scatterer size. The results explain why there is often more echo decorrelation produced in tissues than in commonly used graphite-gelatin test phantoms.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Ultrasonics Symposium
EditorsS.C. Schneider, M. Levy, B.R. McAvoy
Number of pages4
StatePublished - 2000
Externally publishedYes
Event2000 IEEE Ultrasonics Symposium - San Juan, Puerto Rico
Duration: Oct 22 2000Oct 25 2000


Other2000 IEEE Ultrasonics Symposium
Country/TerritoryPuerto Rico
CitySan Juan

ASJC Scopus subject areas

  • General Engineering


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