Development of an Estimation Instrument of Acoustic Lens Properties for Medical Ultrasound Transducers

Journal of Healthcare Engineering
Hojong ChoiJungsuk Kim

Abstract

In medical ultrasound transducers, the transmission mode (pass-through) approach has been used to estimate the characteristics of the acoustic lens. However, it is difficult to measure the acoustic lens properties with high precision because of human, systemic, or mechanical measurement errors. In this paper, we propose a low-cost estimation instrument for acoustic lens properties connected with a customized database. In the instrument, three-axis and one-axis transmitting and material fixtures accurately align the transmitting and receiving transducers separately. Through the developed instrument, we obtained a precise standard deviation of the attenuation coefficient and velocity of the acoustic lens material of 0.05 dB/cm and 2.62 m/s, respectively. Additionally, the simultaneous alignment between the fixtures is controllable with developed programs, thus generating very accurate information of the acoustic lens about the testing ultrasound transducer. In our instrument, the database could support users in managing the result data efficiently. User programs developed using LabVIEW provide the capability to obtain precise values of the attenuation coefficient and velocity, which represent the fundamental material characterist...Continue Reading

References

Feb 14, 2006·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Jonathan M CannataK Kirk Shung
Mar 15, 2006·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Kevin A SnookK Kirk Shung
Sep 23, 2011·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Ben Peng ZhuK Kirk Shung
Jul 26, 2012·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Weibao QiuLei Sun
Sep 1, 2011·Acta Informatica Medica : AIM : Journal of the Society for Medical Informatics of Bosnia & Herzegovina : časopis Društva Za Medicinsku Informatiku BiH·Aladin CarovacDzelaludin Junuzovic
May 23, 2015·The Journal of the Acoustical Society of America·Zhengyao HeK Kirk Shung

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Software Mentioned

PZFlex
FFT
mySQL
PiezoCAD
Field II
LabVIEW

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