Dynamic signal arrival correction for vibro-acoustography image formation

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

Abstract

This paper presents a method to form images from the acoustic emission measured during vibro-acoustography scans that accounts for acoustic propagation delay from the vibrating object to the hydrophone. We use the shapes of the wavefronts of the acoustic emission data to estimate correction angles and create a time delay image that allows us to adjust the location of the temporal window applied to the RF signal in a dynamic or adaptive fashion. The method correctly chooses the segment of the acoustic emission data to process so that the data are consistent from pixel-to-pixel despite finite differences in propagation time to the hydrophone. Image results are presented from a simulated computer phantom, a urethane breast phantom and in vivo breast data and show that image contrast and overall image quality is improved.

Original languageEnglish (US)
Title of host publication2005 IEEE Ultrasonics Symposium
Pages26-29
Number of pages4
DOIs
StatePublished - Dec 1 2005
Event2005 IEEE Ultrasonics Symposium - Rotterdam, Netherlands
Duration: Sep 18 2005Sep 21 2005

Publication series

NameProceedings - IEEE Ultrasonics Symposium
Volume1
ISSN (Print)1051-0117

Other

Other2005 IEEE Ultrasonics Symposium
CountryNetherlands
CityRotterdam
Period9/18/059/21/05

Keywords

  • Acoustic emission
  • Adaptive
  • Vibro-acoustography

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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  • Cite this

    Urban, M. W., & Greenleaf, J. F. (2005). Dynamic signal arrival correction for vibro-acoustography image formation. In 2005 IEEE Ultrasonics Symposium (pp. 26-29). [1602788] (Proceedings - IEEE Ultrasonics Symposium; Vol. 1). https://doi.org/10.1109/ULTSYM.2005.1602788