Miniature transducer using PNN-PZT-based ceramic for intravascular ultrasound

Qi Zhang, Xuming Pang, Zhiqiang Zhang, Min Su, Jiehan Hong, Hairong Zheng, Weibao Qiu, Kwok Ho Lam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

Abstract

In this work, the development and performance evaluation of a high-frequency miniature ultrasonic transducer based on a Pb(Ni1/3Nb2/3)O3-Pb(Zr0.3Ti0.7)O3(PNN-PZT-based) ceramic for intravascular imaging application are reported. The fabricated PNN-PZT-based ceramic possesses ultrahigh relative clamped dielectric permittivity (ϵS0 = 3409) and high electromechanical coupling capability (kt= 0.60). A 42-MHz high-frequency side-looking ultrasonic transducer probe using the PNN-PZT-based ceramic with a miniature aperture of 0.33 mm × 0.33 mm was designed and fabricated, which exhibited a wide-6-dB bandwidth of 79% and an insertion loss of-19.6 dB. High spatial resolution, including the axial resolution of 36μm and the lateral resolution of 141μm, was determined by imaging a 13μm tungsten wire phantom. Ex vivo intravascular ultrasound (IVUS) imaging of a porcine coronary artery was performed to show the imaging capability of the miniature transducer. The results demonstrated the great potential of the PNN-PZT-based ceramic for high-resolution miniature transducers application.

Original languageEnglish
Article number8673874
Pages (from-to)1102-1109
Number of pages8
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume66
Issue number6
DOIs
Publication statusPublished - Jun 2019

Keywords

  • Intravascular ultrasound (IVUS)
  • miniature ultrasonic transducer
  • Pb(Ni1/3Nb2/3)O3-Pb(Zr03Ti07)O3 (PNN-PZT-based) ceramic
  • ultrahigh dielectric permittivity
  • wide bandwidth (BW)

ASJC Scopus subject areas

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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