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Open AccessArticle

Micro Non-Uniform Linear Array (MNULA) for Ultrasound Plane Wave Imaging

1
Division of Life Sciences and Medicine, School of Biomedical Engineering (Suzhou), University of Science and Technology of China, Hefei 230026, China
2
Suzhou Institution of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
*
Author to whom correspondence should be addressed.
Sensors 2021, 21(2), 640; https://doi.org/10.3390/s21020640
Received: 15 December 2020 / Revised: 5 January 2021 / Accepted: 14 January 2021 / Published: 18 January 2021
(This article belongs to the Section Biomedical Sensors)
Ultrasound plane wave imaging technology has been applied to more clinical situations than ever before because of its rapid imaging speed and stable imaging quality. Most transducers used in plane wave imaging are linear arrays, but their structures limit the application of plane wave imaging technology in some special clinical situations, especially in the endoscopic environment. In the endoscopic environment, the size of the linear array transducer is strictly miniaturized, and the imaging range is also limited to the near field. Meanwhile, the near field of a micro linear array has serious mutual interferences between elements, which is against the imaging quality of near field. Therefore, we propose a new structure of a micro ultrasound linear array for plane wave imaging. In this paper, a theoretical comparison is given through sound field and imaging simulations. On the basis of primary work and laboratory technology, micro uniform and non-uniform linear arrays were made and experimented with the phantom setting. We selected appropriate evaluation parameters to verify the imaging results. Finally, we concluded that the micro non-uniform linear array eliminated the artifacts better than the micro uniform linear array without the additional use of signal processing methods, especially for target points in the near-field. We believe this study provides a possible solution for plane wave imaging in cramped environments like endoscopy. View Full-Text
Keywords: non-uniform linear array; plane wave imaging; near field; sound field; imaging quality; endoscope non-uniform linear array; plane wave imaging; near field; sound field; imaging quality; endoscope
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MDPI and ACS Style

Tang, Y.; Li, Z.; Cui, Y.; Yang, C.; Lv, J.; Jiao, Y. Micro Non-Uniform Linear Array (MNULA) for Ultrasound Plane Wave Imaging. Sensors 2021, 21, 640. https://doi.org/10.3390/s21020640

AMA Style

Tang Y, Li Z, Cui Y, Yang C, Lv J, Jiao Y. Micro Non-Uniform Linear Array (MNULA) for Ultrasound Plane Wave Imaging. Sensors. 2021; 21(2):640. https://doi.org/10.3390/s21020640

Chicago/Turabian Style

Tang, Yujia; Li, Zhangjian; Cui, Yaoyao; Yang, Chen; Lv, Jiabing; Jiao, Yang. 2021. "Micro Non-Uniform Linear Array (MNULA) for Ultrasound Plane Wave Imaging" Sensors 21, no. 2: 640. https://doi.org/10.3390/s21020640

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