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首页> 美国卫生研究院文献>Sensors (Basel Switzerland) >Implementation of a Rotational Ultrasound Biomicroscopy System Equipped with a High-Frequency Angled Needle Transducer — Ex Vivo Ultrasound Imaging of Porcine Ocular Posterior Tissues
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Implementation of a Rotational Ultrasound Biomicroscopy System Equipped with a High-Frequency Angled Needle Transducer — Ex Vivo Ultrasound Imaging of Porcine Ocular Posterior Tissues

机译：配备有角度的高频探针的旋转超声生物显微镜系统的实现—猪眼后组织的体外超声成像

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摘要

The mechanical scanning of a single element transducer has been mostly utilized for high-frequency ultrasound imaging. However, it requires space for the mechanical motion of the transducer. In this paper, a rotational scanning ultrasound biomicroscopy (UBM) system equipped with a high-frequency angled needle transducer is designed and implemented in order to minimize the space required. It was applied to ex vivo ultrasound imaging of porcine posterior ocular tissues through a minimal incision hole of 1 mm in diameter. The retina and sclera for the one eye were visualized in the relative rotating angle range of 270° ∼ 330° and at a distance range of 6 ∼ 7 mm, whereas the tissues of the other eye were observed in relative angle range of 160° ∼ 220° and at a distance range of 7.5 ∼ 9 mm. The layer between retina and sclera seemed to be bent because the distance between the transducer tip and the layer was varied while the transducer was rotated. Certin features of the rotation system such as the optimal scanning angle, step angle and data length need to be improved for ensure higher accuracy and precision. Moreover, the focal length should be considered for the image quality. This implementation represents the first report of a rotational scanning UBM system.
机译：单元件换能器的机械扫描已主要用于高频超声成像。但是，它需要空间来进行换能器的机械运动。在本文中，设计并实现了配备有高频角度针式换能器的旋转扫描超声生物显微镜（UBM）系统，以最大程度地减少所需的空间。它通过直径为1 mm的最小切口孔，用于猪眼后组织的体外超声成像。一只眼睛的视网膜和巩膜在270°〜330°的相对旋转角度范围内，在6〜7 mm的距离范围内可视化，而另一只眼睛的组织则在160°〜的相对角度范围内观察到220°，距离范围为7.5〜9 mm。视网膜和巩膜之间的层似乎弯曲了，因为在旋转换能器时换能器尖端与该层之间的距离发生了变化。旋转系统的Certin特性，例如最佳扫描角度，步距角度和数据长度需要改进，以确保更高的精度和精度。此外，焦距应考虑图像质量。此实现表示旋转扫描UBM系统的第一个报告。

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