Volumetric Synthetic Aperture Imaging with a Piezoelectric 2-D Row-Column Probe.

Hamed Bouzari, Mathias Engholm, Thomas Lehrmann Christiansen, Christopher Beers, Anders Lei, Matthias Bo Stuart, Svetoslav Ivanov Nikolov, Erik Vilain Thomsen, Jørgen Arendt Jensen

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The synthetic aperture (SA) technique can be used for achieving real-time volumetric ultrasound imaging using
2-D row-column addressed transducers. This paper investigates SA volumetric imaging performance of an in-house
prototyped 3 MHz λ/2-pitch 62+62 element piezoelectric 2-D row-column addressed transducer array. Utilizing
single element transmit events, a volume rate of 90 Hz down to 14 cm deep is achieved. Data are obtained
using the experimental ultrasound scanner SARUS with a 70 MHz sampling frequency and beamformed using a
delay-and-sum (DAS) approach. A signal-to-noise ratio of up to 32 dB is measured on the beamformed images
of a tissue mimicking phantom with attenuation of 0.5 dB cm−1 MHz−1, from the surface of the probe to the
penetration depth of 300λ. Measured lateral resolution as Full-Width-at-Half-Maximum (FWHM) is between 4λ
and 10λ for 18 % to 65 % of the penetration depth from the surface of the probe. The averaged contrast is 13 dB
for the same range. The imaging performance assessment results may represent a reference guide for possible
applications of such an array in different medical fields
Original languageEnglish
Title of host publicationProceedings of SPIE
EditorsNeb Duric, Brecht Heyde
Number of pages9
PublisherSPIE - International Society for Optical Engineering
Publication date2016
Article number97900Y
Publication statusPublished - 2016
EventSPIE Medical Imaging 2016 : Ultrasonic Imaging and Tomography - Town & Country Resort and Convention Cente, San Diego, United States
Duration: 27 Feb 20163 Mar 2016
Conference number: 9790


ConferenceSPIE Medical Imaging 2016
LocationTown & Country Resort and Convention Cente
Country/TerritoryUnited States
CitySan Diego
Internet address


  • 3-D ultrasound imaging
  • 2-D row-column addressed transducer,
  • Synthetic aperture (SA)


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