Abstract
2D matrix probes present a real capability for three dimensional ultrasound imaging. The main difficulties to implement these probes come from the need of using a huge number of elements and from the grating lobes linked to the element periodical disposition and from the sidelobes arising when this number is reduced. In this study, a new design technique is proposed and shown capable of considerably reducing the probe element number as well as the grating lobes and sidelobes level. The grating lobes, in particular, are reduced by placing the elements without any grid consideration. The sidelobes and the number of active elements are optimized by the simulated annealing. Using the new approach we reduce the element number by 28% (from 235 to 169) and obtain a grating lobe reduction by-10 dB and-20 dB in lateral and elevation direction, respectively.
| Original language | English |
|---|---|
| Title of host publication | 2012 IEEE International Ultrasonics Symposium, IUS 2012 |
| DOIs | |
| Publication status | Published - Dec 1 2012 |
| Event | 2012 IEEE International Ultrasonics Symposium, IUS 2012 - Dresden, Germany Duration: Oct 7 2012 → Oct 10 2012 |
Other
| Other | 2012 IEEE International Ultrasonics Symposium, IUS 2012 |
|---|---|
| Country | Germany |
| City | Dresden |
| Period | 10/7/12 → 10/10/12 |
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All Science Journal Classification (ASJC) codes
- Acoustics and Ultrasonics
Cite this
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Non-grid based elements positioning for optimal 2D array beams. / Diarra, Bakary; Liebgott, Herve; Cachard, Christian; Tortoli, Piero.
2012 IEEE International Ultrasonics Symposium, IUS 2012. 2012. 6561933.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - Non-grid based elements positioning for optimal 2D array beams
AU - Diarra, Bakary
AU - Liebgott, Herve
AU - Cachard, Christian
AU - Tortoli, Piero
PY - 2012/12/1
Y1 - 2012/12/1
N2 - 2D matrix probes present a real capability for three dimensional ultrasound imaging. The main difficulties to implement these probes come from the need of using a huge number of elements and from the grating lobes linked to the element periodical disposition and from the sidelobes arising when this number is reduced. In this study, a new design technique is proposed and shown capable of considerably reducing the probe element number as well as the grating lobes and sidelobes level. The grating lobes, in particular, are reduced by placing the elements without any grid consideration. The sidelobes and the number of active elements are optimized by the simulated annealing. Using the new approach we reduce the element number by 28% (from 235 to 169) and obtain a grating lobe reduction by-10 dB and-20 dB in lateral and elevation direction, respectively.
AB - 2D matrix probes present a real capability for three dimensional ultrasound imaging. The main difficulties to implement these probes come from the need of using a huge number of elements and from the grating lobes linked to the element periodical disposition and from the sidelobes arising when this number is reduced. In this study, a new design technique is proposed and shown capable of considerably reducing the probe element number as well as the grating lobes and sidelobes level. The grating lobes, in particular, are reduced by placing the elements without any grid consideration. The sidelobes and the number of active elements are optimized by the simulated annealing. Using the new approach we reduce the element number by 28% (from 235 to 169) and obtain a grating lobe reduction by-10 dB and-20 dB in lateral and elevation direction, respectively.
UR - http://www.scopus.com/inward/record.url?scp=84882386662&partnerID=8YFLogxK
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U2 - 10.1109/ULTSYM.2012.0388
DO - 10.1109/ULTSYM.2012.0388
M3 - Conference contribution
SN - 9781467345613
BT - 2012 IEEE International Ultrasonics Symposium, IUS 2012
ER -