Ultrasound Plane-Wave Imaging Based on Linear Arrays with Variable Inter-element Spacings

Tang, Yujia; Jiao, Yang; Li, Zhangjian; Lv, Jiabin; Yang, Chen; Cui, Yaoping

doi:10.1109/ultsym.2019.8926301

Cited by 2 publications

(1 citation statement)

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“…Thus, we named the special kind of linear array a micro non-uniform linear array (MNULA). In previous work [ 21 ], we concluded that the new structure brought a lot of changes to the existing kind of linear array transducer, including the distribution of each element and the combination of different parameters of different elements. For this paper, we tried to verify whether the new structure design could improve the transmitted plane wave sound field and its imaging results produced by CPWC through simulations and experiments.…”

Section: Introductionmentioning

confidence: 99%

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

Tang

Cui

et al. 2021

Sensors

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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.

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Section: Introductionmentioning

confidence: 99%