3-D Ultrasound Imaging Performance of a Row-Column Addressed 2-D Array Transducer: A Measurement Study

Morten Fischer Rasmussen, Jørgen Arendt Jensen

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Abstract

A real-time 3-D ultrasound measurement using only 32 elements and 32 emissions is presented. The imaging quality is compared to a conventionally fully addressed array using 1024 elements and 256 emissions. The main-lobe of the measured line spread function is almost identical, but the side-lobe levels are higher for the row-column addressed array. The cystic resolution sampled at a relative intensity difference of 20 dB shows a cyst size of 5.00mm for the row-column addressed array and 2.39mm for the fully sampled array. A simulation study is carried out which compares how the imaging quality of the two addressing methods scales with the number of beamforming channels used. It is shown that for any fixed number of active elements, a rowcolumn addressed array achieves a better image quality than fully addressing the array. When using 128 channels, the mainlobe when fully addressing the array is 510% larger than when row-column addressing the array. The cyst radius needed to achieve -20 dB intensity in the cyst is 396% larger for the fully addressed array compared to the row-column addressed array. The measurements were made using the experimental ultrasound scanner SARUS and a 32x32 element ultrasound probe made by Vermon S.A.
Original languageEnglish
Title of host publication2013 IEEE International Ultrasonics Symposium Proceedings.
PublisherIEEE
Publication date2013
Pages1460-1463
ISBN (Print)9781467356862
DOIs
Publication statusPublished - 2013
Event2013 IEEE International Ultrasonics Symposium - Prague Convention Center , Prague, Czech Republic
Duration: 21 Jul 201325 Jul 2013
http://ewh.ieee.org/conf/uffc/2013/

Conference

Conference2013 IEEE International Ultrasonics Symposium
LocationPrague Convention Center
CountryCzech Republic
CityPrague
Period21/07/201325/07/2013
Internet address

Keywords

  • Fields, Waves and Electromagnetics
  • Apertures
  • Arrays
  • Image resolution
  • Imaging
  • Probes
  • Ultrasonic imaging
  • Ultrasonic variables measurement

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