Variable-size elements in 2D sparse arrays for 3D medical ultrasound

Bakary Diarra, Marc Robini, Herve Liebgott, Christian Cachard, Piero Tortoli

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

3 Citations (Scopus)

Abstract

The sparse array technique is an excellent approach to tackle the connection difficulties due to the huge number of elements of 2D matrix arrays. However, the reduction of the element number leads to significant performance reduction, especially in terms of energy loss. An efficient alternative to increase the array sensitivity is using elements wider than λ/2 while non-grid positioning strategies are adopted. To further decrease the unwanted lobes of the array beam, the variable-size elements array is proposed. This new configuration, combining the randomness of elements position and of their size, leads to excellent beam patterns. In addition, the main lobe width can be controlled to change the array spatial resolution.

Original languageEnglish
Title of host publication2013 IEEE International Ultrasonics Symposium, IUS 2013
Pages508-511
Number of pages4
DOIs
Publication statusPublished - Dec 1 2013
Event2013 IEEE International Ultrasonics Symposium, IUS 2013 - Prague, Czech Republic
Duration: Jul 21 2013Jul 25 2013

Other

Other2013 IEEE International Ultrasonics Symposium, IUS 2013
CountryCzech Republic
CityPrague
Period7/21/137/25/13

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All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics

Cite this

Diarra, B., Robini, M., Liebgott, H., Cachard, C., & Tortoli, P. (2013). Variable-size elements in 2D sparse arrays for 3D medical ultrasound. In 2013 IEEE International Ultrasonics Symposium, IUS 2013 (pp. 508-511). [6724847] https://doi.org/10.1109/ULTSYM.2013.0132