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Journal of Healthcare Engineering
Volume 2017, Article ID 6580217, 7 pages
https://doi.org/10.1155/2017/6580217
Research Article

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

1Ultrasound System Hardware Laboratory and Department of Medical IT Convergence Engineering, Kumoh National Institute of Technology, 350-27 Gumi-Daero, Gumi, Gyeongbuk 35029, Republic of Korea
2IMP System, 301-3ho 267-96 Gongdan2-dong, Gumi, Gyeongbuk 39373, Republic of Korea
3Department of Biomedical Engineering, Gachon University, Incheon 21936, Republic of Korea

Correspondence should be addressed to Jongseon Johnson Jeong; rk.oc.metsyspmi@ogxubogzz and Jungsuk Kim; rk.ca.nohcag@kusgnuj

Received 23 April 2017; Accepted 7 September 2017; Published 22 December 2017

Academic Editor: Antonio Gloria

Copyright © 2017 Hojong Choi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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 characteristics of the acoustic lens of the medical ultrasound transducers. The developed review program of the customized database can also search the acoustic lens information and store the experimental results.