Beamforming using spatio-temporal filtering

Jie Liu, Kangsik Kim, Michael F. Insana, Shelby Brunke

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


Wiener spatial filtering of unfocused echo signals in the near field of low f-number apertures is a promising beamforming strategy for detecting low-contrast lesions. The advantages of the spatial filter over dynamic receive focusing (DRF) include greater echo signal-to-noise ratio (eSNR) and improved proved lateral resolution. Disadvantages include sidelobe growth and a loss of eSNR gain in the far field. Temporally coded pulses enhance eSNR at all depths, but generate the lowest range sidelobes in the far field. Temporal codes are distorted in the near field of low f-number apertures, unless filtering is applied to individual receive channels. In this paper we combine the best of both techniques with the goal of enhancing low contract breast lesion visibility. Experiments and simulations illustrate the advantages and limitations of the spatio-temporal filtering method.

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

Publication series

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


Other2005 IEEE Ultrasonics Symposium

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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