Experimental demonstration of the coherent use of two sparse arrays for 3-D imaging

Laura Peralta, Daniele Mazierli, Alberto Gomez, Joseph V. Hajnal, Piero Tortoli, Alessandro Ramalli

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

1 Citation (Scopus)


Coherent multi-transducer ultrasound (CoMTUS) creates an extended effective aperture through the coherent combination of multiple arrays. In this study, for the first time, CoMTUS is experimentally implemented and demonstrated in 3-D using two synchronized ULA-OP 256 systems controlling a pair of 2-D sparse arrays. Results show that, in comparison to a single dense spiral array system using the same total number of active elements, the proposed CoMTUS system formed by two 2-D 256-element sparse spiral arrays leads to significant improvements in spatial resolution, in the direction where both arrays are aligned, and higher contrast-to-noise-ratio and generalized contrast-to-noise-ratio.

Original languageEnglish
Title of host publicationIUS 2022 - IEEE International Ultrasonics Symposium
PublisherIEEE Computer Society Press
ISBN (Electronic)9781665466578
Publication statusPublished - 2022
Event2022 IEEE International Ultrasonics Symposium, IUS 2022 - Venice, Italy
Duration: 10 Oct 202213 Oct 2022

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727


Conference2022 IEEE International Ultrasonics Symposium, IUS 2022


  • beamforming
  • high-frame-rate
  • large aperture
  • multi-transducer
  • ULA-OP
  • ultrasound


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