Single-Crystal High-Frequency Intravascular Ultrasound Transducer with 40-\mu m Axial Resolution

Xiaowen Ma; Wenwu Cao

doi:10.1109/TUFFC.2019.2956603

Single-Crystal High-Frequency Intravascular Ultrasound Transducer with 40-\mu m Axial Resolution

Xiaowen Ma, Wenwu Cao

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Intravascular ultrasound (IVUS) is one of the most useful tools available today to assist intravascular stenting procedures. Having higher resolution is very important for helping doctors to evaluate the nature of atherosclerotic plaques. The current commercial IVUS systems have a spatial resolution of 70- 200~\mu \text{m} in the axial direction and 200- 400~\mu \text{m} in the lateral direction, which are insufficient for accurate diagnosis. We report here a three-matching-layer IVUS transducer design using a 0.72Pb(Mg_1/3Nb_2/3O₃ - 0.28PbTiO₃ single crystal, which can improve the axial resolution to 40~\mu \text{m} without sacrificing the penetration depth. Wire phantom imaging and in vitro porcine coronary artery imaging show noticeably better axial resolution and similar penetration depth compared with a commercial IVUS transducer.

Original language	English (US)
Article number	8917674
Pages (from-to)	810-816
Number of pages	7
Journal	IEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume	67
Issue number	4
DOIs	https://doi.org/10.1109/TUFFC.2019.2956603
State	Published - Apr 2020

All Science Journal Classification (ASJC) codes

Instrumentation
Acoustics and Ultrasonics
Electrical and Electronic Engineering

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10.1109/TUFFC.2019.2956603

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title = "Single-Crystal High-Frequency Intravascular Ultrasound Transducer with 40-\mu m Axial Resolution",

abstract = "Intravascular ultrasound (IVUS) is one of the most useful tools available today to assist intravascular stenting procedures. Having higher resolution is very important for helping doctors to evaluate the nature of atherosclerotic plaques. The current commercial IVUS systems have a spatial resolution of 70- 200~\mu \text{m} in the axial direction and 200- 400~\mu \text{m} in the lateral direction, which are insufficient for accurate diagnosis. We report here a three-matching-layer IVUS transducer design using a 0.72Pb(Mg1/3Nb2/3O3 - 0.28PbTiO3 single crystal, which can improve the axial resolution to 40~\mu \text{m} without sacrificing the penetration depth. Wire phantom imaging and in vitro porcine coronary artery imaging show noticeably better axial resolution and similar penetration depth compared with a commercial IVUS transducer.",

author = "Xiaowen Ma and Wenwu Cao",

note = "Funding Information: Manuscript received July 29, 2019; accepted November 21, 2019. Date of publication November 28, 2019; date of current version March 25, 2020. This work was supported by the Shanghai Science and Technology Committee through the Shanghai Sailing Program under Grant 17YF1405300. (Corresponding author: Wenwu Cao.) X. Ma is with the School of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, China. Publisher Copyright: {\textcopyright} 1986-2012 IEEE.",

year = "2020",

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doi = "10.1109/TUFFC.2019.2956603",

language = "English (US)",

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AU - Ma, Xiaowen

AU - Cao, Wenwu

N1 - Funding Information: Manuscript received July 29, 2019; accepted November 21, 2019. Date of publication November 28, 2019; date of current version March 25, 2020. This work was supported by the Shanghai Science and Technology Committee through the Shanghai Sailing Program under Grant 17YF1405300. (Corresponding author: Wenwu Cao.) X. Ma is with the School of Life Science and Technology, Harbin Institute of Technology, Harbin 150080, China. Publisher Copyright: © 1986-2012 IEEE.

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N2 - Intravascular ultrasound (IVUS) is one of the most useful tools available today to assist intravascular stenting procedures. Having higher resolution is very important for helping doctors to evaluate the nature of atherosclerotic plaques. The current commercial IVUS systems have a spatial resolution of 70- 200~\mu \text{m} in the axial direction and 200- 400~\mu \text{m} in the lateral direction, which are insufficient for accurate diagnosis. We report here a three-matching-layer IVUS transducer design using a 0.72Pb(Mg1/3Nb2/3O3 - 0.28PbTiO3 single crystal, which can improve the axial resolution to 40~\mu \text{m} without sacrificing the penetration depth. Wire phantom imaging and in vitro porcine coronary artery imaging show noticeably better axial resolution and similar penetration depth compared with a commercial IVUS transducer.

AB - Intravascular ultrasound (IVUS) is one of the most useful tools available today to assist intravascular stenting procedures. Having higher resolution is very important for helping doctors to evaluate the nature of atherosclerotic plaques. The current commercial IVUS systems have a spatial resolution of 70- 200~\mu \text{m} in the axial direction and 200- 400~\mu \text{m} in the lateral direction, which are insufficient for accurate diagnosis. We report here a three-matching-layer IVUS transducer design using a 0.72Pb(Mg1/3Nb2/3O3 - 0.28PbTiO3 single crystal, which can improve the axial resolution to 40~\mu \text{m} without sacrificing the penetration depth. Wire phantom imaging and in vitro porcine coronary artery imaging show noticeably better axial resolution and similar penetration depth compared with a commercial IVUS transducer.

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Single-Crystal High-Frequency Intravascular Ultrasound Transducer with 40-\mu m Axial Resolution

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