A Tiled Ultrasound Matrix Transducer for Volumetric Imaging of the Carotid Artery

Djalma Simões dos Santos*, Fabian Fool, Moein Mozaffarzadeh, Maysam Shabanimotlagh, Emile Noothout, T. Kim, Nuriel Rozsa, Hendrik J. Vos, Johan G. Bosch, Michiel A.P. Pertijs, Martin D. Verweij, Nico de Jong

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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High frame rate three-dimensional (3D) ultrasound imaging would offer excellent possibilities for the accurate assessment of carotid artery diseases. This calls for a matrix transducer with a large aperture and a vast number of elements. Such a matrix transducer should be interfaced with an application-specific integrated circuit (ASIC) for channel reduction. However, the fabrication of such a transducer integrated with one very large ASIC is very challenging and expensive. In this study, we develop a prototype matrix transducer mounted on top of multiple identical ASICs in a tiled configuration. The matrix was designed to have 7680 piezoelectric elements with a pitch of 300 μm × 150 μm integrated with an array of 8 × 1 tiled ASICs. The performance of the prototype is characterized by a series of measurements. The transducer exhibits a uniform behavior with the majority of the elements working within the −6 dB sensitivity range. In transmit, the individual elements show a center frequency of 7.5 MHz, a −6 dB bandwidth of 45%, and a transmit efficiency of 30 Pa/V at 200 mm. In receive, the dynamic range is 81 dB, and the minimum detectable pressure is 60 Pa per element. To demonstrate the imaging capabilities, we acquired 3D images using a commercial wire phantom.

Original languageEnglish
Article number9799
Number of pages23
Issue number24
Publication statusPublished - 2022


  • application-specific integrated circuit (ASIC)
  • carotid artery
  • high-frame rate
  • lead zirconate titanate (PZT)
  • matrix array
  • three-dimensional (3D)
  • ultrasound imaging
  • ultrasound transducer


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