Image artifacts in vibroacoustography

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

Abstract

Vibro-acoustography (VA) is a recently developed imaging method based on the dynamic response of the object to a low-frequency radiation force of ultrasound. This method utilizes the radiation force of focused ultrasound to produce a localized radiation force on the object. Here, we discuss image artefacts and demonstrate these artefacts in vibro-acoustography through computer simulation and in-vitro experiments. The results indicate that sharp transitions in object properties produce strong responses in vibro-acoustography. Experiments are conducted on excised fixed liver tissues including focal lesions and breast tissue with microcalcification. Resulting images which are in agreement with the theory of simulation show the lesions with enhanced boundary lines.

Original languageEnglish (US)
Title of host publicationProceedings of the Seventh IASTED International Conference on Signal and Image Processing, SIP 2005
EditorsM.W. Marcellin
Pages570-572
Number of pages3
StatePublished - 2005
EventSeventh IASTED International Conference on Signal and Image Processing, SIP 2005 - Honolulu, HI, United States
Duration: Aug 15 2005Aug 17 2005

Other

OtherSeventh IASTED International Conference on Signal and Image Processing, SIP 2005
CountryUnited States
CityHonolulu, HI
Period8/15/058/17/05

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Keywords

  • Artifacts
  • Imaging
  • Radiation force
  • Ultrasound
  • Vibro-acoustography

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Alizad, A., Greenleaf, J. F., & Fatemi, M. (2005). Image artifacts in vibroacoustography. In M. W. Marcellin (Ed.), Proceedings of the Seventh IASTED International Conference on Signal and Image Processing, SIP 2005 (pp. 570-572)