Optimization of free-moving elements in 2D ultrasound sparse arrays

Conference proceedings article

Authors/Editors

Research Areas

No matching items found.

Publication Details

Author list: Diarra B, Robini M, Roux E, Liebgott H, Cachard C, Roux E, Tortoli P

Publisher: Institute of Electrical and Electronics Engineers (IEEE)

Place: NEW YORK

Publication year: 2014

Journal: IEEE International Ultrasonics Symposium (1948-5719)

Journal acronym: IEEE INT ULTRA SYM

Start page: 2189

End page: 2192

Number of pages: 4

eISBN: 978-1-4799-7049-0

ISSN: 1948-5719

Languages: English-Great Britain (EN-GB)

View in Web of Science | View on publisher site | View citing articles in Web of Science

Abstract

the non-grid sparse array technique is a promising approach to overcome the connection difficulties of 2D matrix arrays and to partially compensate the energy loss linked to the element number reduction. Being independent from the spatial sampling conditions, this method leads to a significant improvement of the beam pattern when combined to the simulated annealing algorithm. However, in the previous version of this method [1], the position of the elements cannot be changed during the optimization. In order to add a further degree of freedom and thus to improve the optimization performance, we propose a new strategy in which both element position and apodization can be modified. This new approach improves the sensitivity thanks to a better distribution of the elements on the array footprint.

Keywords

2D array, 3D ultrasound imaging, non-grid sparse array, simulated annealing

Documents

No matching items found.