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

doi:10.1109/TUFFC.2019.2906652

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

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

21 Citations (Scopus)

Abstract

In this work, the development and performance evaluation of a high-frequency miniature ultrasonic transducer based on a Pb(Ni_1/3Nb_2/3)O₃-Pb(Zr_0.3Ti_0.7)O₃(PNN-PZT-based) ceramic for intravascular imaging application are reported. The fabricated PNN-PZT-based ceramic possesses ultrahigh relative clamped dielectric permittivity (ϵ^S/ϵ₀ = 3409) and high electromechanical coupling capability (k_t= 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 language	English
Article number	8673874
Pages (from-to)	1102-1109
Number of pages	8
Journal	IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume	66
Issue number	6
DOIs	https://doi.org/10.1109/TUFFC.2019.2906652
Publication status	Published - 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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10.1109/TUFFC.2019.2906652

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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 (ϵS/ϵ0 = 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.",

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AU - Lam, Kwok Ho

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

Abstract

Keywords

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