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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Miniaturized High-Resolution Integrated 360° Electronic Radial Ultrasound Endoscope for Digestive Tract Imaging
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Miniaturized High-Resolution Integrated 360° Electronic Radial Ultrasound Endoscope for Digestive Tract Imaging

机译：小型化高分辨率集成360°电子径向超声内窥镜，用于消化道成像

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摘要

To improve the accuracy and operating flexibility of digestive diagnostic applications in situ, this paper demonstrates the design, fabrication, and evaluation of a miniaturized high-resolution integrated 360 degrees electronic radial ultrasound endoscope. To improve the uniformity between elements of the radial array transducer, an optimal fabrication procedure based on a flexible matching layer was developed. The radial ultrasound endoscope has a 128.3 degrees 5-million-pixel camera module integrated with an approximately 8-MHz 128-element radial ultrasonic array in a package with an outer diameter of 9.5 mm. The results showed that the array has a center frequency of 8.2 MHz, a -6-dB fractional bandwidth of 83.4%, and a two-way insertion loss of 39.62 dB at the center frequency. Annulus and wire phantoms can be distinctly imaged with the radial array. Printed eight-point font can be distinctly imaged with both a large view and a 3-18-mm depth of field in lumen short-range optical imaging. A porcine esophagus can be distinctly imaged in vitro with the integrated endoscope. The results indicate that the fabrication method based on a flexible matching layer can achieve high uniformity between elements of a radial array transducer. In addition, the proposed ultrasound endoscope demonstrates a good image resolution.
机译：为了提高消化诊断应用的准确性和操作灵活性，本文展示了小型化高分辨率集成360型电子径向超声内窥镜的设计，制造和评估。为了提高径向阵列换能器的元件之间的均匀性，开发了基于柔性匹配层的最佳制造过程。径向超声内窥镜具有128.3度500亿像素的相机模块，其集成在具有大约8-MHz 128元件的径向超声波阵列，其外径为9.5mm。结果表明，阵列的中心频率为8.2MHz，A6-DB分数带宽为83.4％，在中心频率下双向插入损耗为39.62 dB。环形和线幻影可以与径向阵列明显地成像。在Lumen短距离光学成像中，可以在大视图和3-18毫米景深和3-18毫米景深中明显成像。猪食管可以用集成内窥镜在体外显然成像。结果表明，基于柔性匹配层的制造方法可以在径向阵列换能器的元件之间实现高均匀性。此外，所提出的超声内窥镜展示了良好的图像分辨率。

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  • 作者

    Peng Jue; Li Xiaozhen; Tang Hu; Ma Lucai; Zhang Ting; Li Yunfei; Chen Siping;

  • 作者单位

    Shenzhen Univ Natl Reg Key Technol Engn Lab Med Ultrasound Guangdong Prov Key Lab Biomed Measurements & Ultr Sch Biomed Engn Hlth Sci Ctr Shenzhen 518060 Peoples R China;

    Shenzhen Univ Natl Reg Key Technol Engn Lab Med Ultrasound Guangdong Prov Key Lab Biomed Measurements & Ultr Sch Biomed Engn Hlth Sci Ctr Shenzhen 518060 Peoples R China;

    Shenzhen Univ Natl Reg Key Technol Engn Lab Med Ultrasound Guangdong Prov Key Lab Biomed Measurements & Ultr Sch Biomed Engn Hlth Sci Ctr Shenzhen 518060 Peoples R China;

    Shenzhen Univ Natl Reg Key Technol Engn Lab Med Ultrasound Guangdong Prov Key Lab Biomed Measurements & Ultr Sch Biomed Engn Hlth Sci Ctr Shenzhen 518060 Peoples R China;

    Shenzhen Univ Natl Reg Key Technol Engn Lab Med Ultrasound Guangdong Prov Key Lab Biomed Measurements & Ultr Sch Biomed Engn Hlth Sci Ctr Shenzhen 518060 Peoples R China;

    Shenzhen Univ Natl Reg Key Technol Engn Lab Med Ultrasound Guangdong Prov Key Lab Biomed Measurements & Ultr Sch Biomed Engn Hlth Sci Ctr Shenzhen 518060 Peoples R China;

    Shenzhen Univ Natl Reg Key Technol Engn Lab Med Ultrasound Guangdong Prov Key Lab Biomed Measurements & Ultr Sch Biomed Engn Hlth Sci Ctr Shenzhen 518060 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Digestive tract imaging; endoscopic ultrasound; radial array transducer; wide-angle complementary metal-oxide-semiconductor (CMOS) camera module;

    机译：消化道成像;内窥镜超声波;径向阵列换能器;广角互补金属氧化物半导体（CMOS）相机模块;

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