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首页> 外文期刊>IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control >Cable-Shared Dual-Frequency Catheter for Intravascular Ultrasound
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Cable-Shared Dual-Frequency Catheter for Intravascular Ultrasound

机译：用于血管内超声的电缆共用双频导管

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摘要

This study proposes a catheter consisting of dual-frequency transducer for intravascular ultrasound. Both ultrasonic elements with different frequencies were connected to one coaxial cable to make the connection simple. The aperture sizes of the ultrasound elements were 0.4 x 0.6 and 0.3 x 0.4 mm 2 for the low-frequency element and high-frequency element, respectively. The center frequency and bandwidth of the fabricated low-frequency transducer were 33.8 MHz and 49.3%, respectively. Meanwhile, the center frequency and bandwidth of the high-frequency transducer were 80.6 MHz and 50.3%, respectively. Imaging evaluations of wire phantom, tissue phantom, and vessel tissue demonstrated good imaging capability of the dual-frequency catheter. The spatial resolutions are 19 mu m axially and 128 mu m laterally for the high-frequency transducer, and 37 mu m axially and 199 mu m laterally for the low-frequency transducer. Bandpass filters were designed to separate the mixed echo signals. After filtering, the images from different ultrasound elements can be successfully identified, indicating the feasibility of the proposed cable-shared dual-frequency imaging strategy. The proposed method has simple structure, good imaging resolution, and large penetration depth, showing good application prospect for intravascular ultrasound.
机译：该研究提出了一种由用于血管内超声的双频换能器组成的导管。两个具有不同频率的超声波元件连接到一个同轴电缆，以使连接简单。对于低频元件和高频元件，超声元件的孔径尺寸分别为0.4×0.6和0.3×0.4mm 2。制造的低频传感器的中心频率和带宽分别为33.8MHz和49.3％。同时，高频换能器的中心频率和带宽分别为80.6MHz和50.3％。线幻影，组织幻像和血管组织的成像评估显示了双频导管的良好成像能力。空间分辨率为19μm，为高频换能器横向和128μm，以及37μm轴向和199μm用于低频换能器。设计带通滤波器以分离混合回波信号。过滤后，可以成功识别来自不同超声元素的图像，表明所提出的电缆共享双频成像策略的可行性。该方法的结构简单，成像分辨率良好，渗透深度大，含有良好的血管内超声展望。

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  • 作者

    Su Min; Zhang Zhiqiang; Hong Jiehan; Huang Yaocai; Mu Peitian; Yu Yanyan; Liu Rong; Liang Suzi; Zheng Hairong; Qiu Weibao;

  • 作者单位

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China;

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China;

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China|Univ Chinese Acad Sci Shenzhen Coll Adv Technol Shenzhen 518055 Peoples R China;

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China|Univ Chinese Acad Sci Shenzhen Coll Adv Technol Shenzhen 518055 Peoples R China;

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China|Univ Chinese Acad Sci Shenzhen Coll Adv Technol Shenzhen 518055 Peoples R China;

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China;

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China;

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China|Univ Chinese Acad Sci Shenzhen Coll Adv Technol Shenzhen 518055 Peoples R China;

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China|Univ Chinese Acad Sci Shenzhen Coll Adv Technol Shenzhen 518055 Peoples R China;

    Chinese Acad Sci Paul C Lauterbur Res Ctr Biomed Imaging Shenzhen Inst Adv Technol Shenzhen 518055 Peoples R China|Shenzhen Key Lab Ultrasound Imaging & Therapy Shenzhen 518055 Peoples R China|Univ Chinese Acad Sci Shenzhen Coll Adv Technol Shenzhen 518055 Peoples R China;

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  • 正文语种 eng
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  • 关键词

    Cable-shared transducer; deep penetration; dual frequency; high-imaging resolution; intravascular ultrasound;

    机译：电缆共用传感器;深渗透;双频;高成像分辨率;血管内超声;

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