PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application.

PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application. Abstract Text:

Qifa Zhou,Xiaochen Xu,Emanuel J Gottlieb,Lei Sun,Jonathan M Cannata,Hossein Ameri,Mark S Humayun,Pengdi Han,K Kirk Shung,

High-frequency needle ultrasound transducers with an aperture size of 0.4 mm were fabricated using lead magnesium niobate-lead titanate (PMN-33% PT) as the active piezoelectric material. The active element was bonded to a conductive silver particle matching layer and a conductive epoxy backing through direct contact curing. An outer matching layer of parylene was formed by vapor deposition. The active element was housed within a polyimide tube and a 20-gauge needle housing. The magnitude and phase of the electrical impedance of the transducer were 47 omega and -38 degrees, respectively. The measured center frequency and -6 dB fractional bandwidth of the PMN-PT needle transducer were 44 MHz and 45%, respectively. The two-way insertion loss was approximately 15 dB. In vivo high-frequency, pulsed-wave Doppler patterns of blood flow in the posterior portion and in vitro ultrasonic backscatter microscope (UBM) images of the rabbit eye were obtained with the 44-MHz needle transducer.

PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application. Publishing Authors By Initials

Q Zhou,X Xu,EJ Gottlieb,L Sun,JM Cannata,H Ameri,MS Humayun,P Han,KK Shung,

For similar diagnosis: diagnostic techniques and procedures: diagnostic imaging: ultrasonography: ultrasonography, doppler: ultrasonography, doppler, pulsed research abstracts see: diagnosis: diagnostic techniques and procedures: diagnostic imaging: ultrasonography: ultrasonography, doppler: ultrasonography, doppler, pulsed research

PUBMED ID PMID:

MEDLINE DATE:

PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: IEEE transactions on ultrasonics, ferroelectrics,

VOLUME: 54

Page Numbers: 668-75

Journal Abbreviation:

ISSN: 0885-3010

DAY: 3

MONTH: Mar

YEAR: 2007

PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9882735

PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application. Keywords Mesh Terms:

KEYWORDS: Ultrasonography, Doppler, Pulsed

MESH TERMS: methods

Chemical & Substance for Abstract: PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application.

AFFILIATION: NIH Resource on Medical Ultrasonic Transducer Technology, Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA. qifazhou@usc.edu

Country: United States

AGENCY: United States NIBIB

GRANT: P41-EB2182

ACRONYM: EB

MEDLINETA: IEEE Trans Ultrason Ferroelect

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application Related Publications

• A high-frame rate duplex ultrasound biomicroscopy for small animal imaging in vivo.
• A high-frame rate high-frequency ultrasonic system for cardiac imaging in mice.
• A low-cost bipolar pulse generator for high-frequency ultrasound applications.
• A novel envelope detector for high-frame rate, high-frequency ultrasound imaging.
• An in vitro study of the effects of Doppler angle, fibrinogen, and hematocrit on ultrasonic Doppler power.
• Characterization of high-frequency, single-element focused transducers with wire target and hydrophone.
• Design and fabrication of PZN-7%PT single crystal high frequency angled needle ultrasound transducers.
• Design and fabrication of broadband graded ultrasonic transducers with rectangular kerfs.
• Design of a high frequency array based photoacoustic microscopy system for micro-vascular imaging.
• Effect of ultrasonic attenuation on the feasibility of acoustic tweezers.
• Evaluation of lens hardness in cataract surgery using high-frequency ultrasonic parameters in vitro.
• Feasibility study of using high-frequency ultrasonic Nakagami imaging for characterizing the cataract lens in vitro.
• High-Frequency Ultrasound Doppler System for Biomedical Applications with a 30-MHz Linear Array.
• High-speed digital scan converter for high-frequency ultrasound sector scanners.
• In Vivo Cardiac Imaging of Adult Zebrafish Using High Frequency Ultrasound (45-75 MHz).
• PMN-PT single crystal, high-frequency ultrasonic needle transducers for pulsed-wave Doppler application.
• Radiation forces exerted on arbitrarily located sphere by acoustic tweezer.
• Scattering of ultrasound from skeletal muscle tissue.
• Ultrasonic observation of blood disturbance in a stenosed tube: effects of flow acceleration and turbulence downstream.
• Variation in ultrasonic backscattering from skeletal muscle during passive stretching.