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

Xiaowen Ma, Wenwu Cao

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish (US)
Article number8917674
Pages (from-to)810-816
Number of pages7
JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume67
Issue number4
DOIs
StatePublished - Apr 2020

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Single-Crystal High-Frequency Intravascular Ultrasound Transducer with 40-\mu m Axial Resolution'. Together they form a unique fingerprint.

Cite this