Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound Imaging
For many years, ultrasound has provided clinicians with an affordable and effective imaging tool for applications ranging from cardiology to obstetrics. Development of microbubble contrast agents over the past several decades has enabled ultrasound to distinguish between blood flow and surrounding t...
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2014-11-01
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doaj-1b50222d28a94a839ad7098c184e6e4b2020-11-24T21:52:10ZengMDPI AGSensors1424-82202014-11-011411208252084210.3390/s141120825s141120825Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound ImagingK. Heath Martin0Brooks D. Lindsey1Jianguo Ma2Mike Lee3Sibo Li4F. Stuart Foster5Xiaoning Jiang6Paul A. Dayton7Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University at Raleigh, Chapel Hill, NC 27599, USAJoint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University at Raleigh, Chapel Hill, NC 27599, USADepartment of Mechanical & Aero-Space Engineering, North Carolina State University, Raleigh, NC 27695, USASunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, CanadaDepartment of Mechanical & Aero-Space Engineering, North Carolina State University, Raleigh, NC 27695, USASunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, CanadaDepartment of Mechanical & Aero-Space Engineering, North Carolina State University, Raleigh, NC 27695, USAJoint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University at Raleigh, Chapel Hill, NC 27599, USAFor many years, ultrasound has provided clinicians with an affordable and effective imaging tool for applications ranging from cardiology to obstetrics. Development of microbubble contrast agents over the past several decades has enabled ultrasound to distinguish between blood flow and surrounding tissue. Current clinical practices using microbubble contrast agents rely heavily on user training to evaluate degree of localized perfusion. Advances in separating the signals produced from contrast agents versus surrounding tissue backscatter provide unique opportunities for specialized sensors designed to image microbubbles with higher signal to noise and resolution than previously possible. In this review article, we describe the background principles and recent developments of ultrasound transducer technology for receiving signals produced by contrast agents while rejecting signals arising from soft tissue. This approach relies on transmitting at a low-frequency and receiving microbubble harmonic signals at frequencies many times higher than the transmitted frequency. Design and fabrication of dual-frequency transducers and the extension of recent developments in transducer technology for dual-frequency harmonic imaging are discussed.http://www.mdpi.com/1424-8220/14/11/20825acousticsacoustic angiographydual-frequencysuperharmonicharmonicbroadbandmicrobubbles |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
K. Heath Martin Brooks D. Lindsey Jianguo Ma Mike Lee Sibo Li F. Stuart Foster Xiaoning Jiang Paul A. Dayton |
spellingShingle |
K. Heath Martin Brooks D. Lindsey Jianguo Ma Mike Lee Sibo Li F. Stuart Foster Xiaoning Jiang Paul A. Dayton Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound Imaging Sensors acoustics acoustic angiography dual-frequency superharmonic harmonic broadband microbubbles |
author_facet |
K. Heath Martin Brooks D. Lindsey Jianguo Ma Mike Lee Sibo Li F. Stuart Foster Xiaoning Jiang Paul A. Dayton |
author_sort |
K. Heath Martin |
title |
Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound Imaging |
title_short |
Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound Imaging |
title_full |
Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound Imaging |
title_fullStr |
Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound Imaging |
title_full_unstemmed |
Dual-Frequency Piezoelectric Transducers for Contrast Enhanced Ultrasound Imaging |
title_sort |
dual-frequency piezoelectric transducers for contrast enhanced ultrasound imaging |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2014-11-01 |
description |
For many years, ultrasound has provided clinicians with an affordable and effective imaging tool for applications ranging from cardiology to obstetrics. Development of microbubble contrast agents over the past several decades has enabled ultrasound to distinguish between blood flow and surrounding tissue. Current clinical practices using microbubble contrast agents rely heavily on user training to evaluate degree of localized perfusion. Advances in separating the signals produced from contrast agents versus surrounding tissue backscatter provide unique opportunities for specialized sensors designed to image microbubbles with higher signal to noise and resolution than previously possible. In this review article, we describe the background principles and recent developments of ultrasound transducer technology for receiving signals produced by contrast agents while rejecting signals arising from soft tissue. This approach relies on transmitting at a low-frequency and receiving microbubble harmonic signals at frequencies many times higher than the transmitted frequency. Design and fabrication of dual-frequency transducers and the extension of recent developments in transducer technology for dual-frequency harmonic imaging are discussed. |
topic |
acoustics acoustic angiography dual-frequency superharmonic harmonic broadband microbubbles |
url |
http://www.mdpi.com/1424-8220/14/11/20825 |
work_keys_str_mv |
AT kheathmartin dualfrequencypiezoelectrictransducersforcontrastenhancedultrasoundimaging AT brooksdlindsey dualfrequencypiezoelectrictransducersforcontrastenhancedultrasoundimaging AT jianguoma dualfrequencypiezoelectrictransducersforcontrastenhancedultrasoundimaging AT mikelee dualfrequencypiezoelectrictransducersforcontrastenhancedultrasoundimaging AT siboli dualfrequencypiezoelectrictransducersforcontrastenhancedultrasoundimaging AT fstuartfoster dualfrequencypiezoelectrictransducersforcontrastenhancedultrasoundimaging AT xiaoningjiang dualfrequencypiezoelectrictransducersforcontrastenhancedultrasoundimaging AT pauladayton dualfrequencypiezoelectrictransducersforcontrastenhancedultrasoundimaging |
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1725876501451112448 |