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首页> 外文期刊>Sensing and imaging >Spectral Analysis of Ultrasonic and Photo Acoustic Signals Generated by a Prototypal Fiber Microprobe for Media Characterization
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Spectral Analysis of Ultrasonic and Photo Acoustic Signals Generated by a Prototypal Fiber Microprobe for Media Characterization

机译：用原型光纤微探测器产生超声波和光学信号的光谱分析，进行介质纤维探测

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摘要

Combination of photoacoustics and ultrasound can provide complemental features and mutual benefits, useful for a complete tissue characterization and consequently for early diagnosis or therapy monitoring. Furthermore, minimally invasive techniques are required both to reach organs or tissue not accessible and to reduce patient discomfort and costs. This work has tested a prototypal microprobe for media characterization analysing their optical and mechanical features. Two different transmitters compose the miniaturized probe: one for large bandwidth ultrasonic signals generation and one for guiding the laser light into tissue to photogenerate ultrasound. The aim is to evaluate the possibility of employing in the future this new type of microprobe to characterize internal tissue, combining ultrasound and photoacoustic investigations. A calibrated commercial hydrophone has been used to detect generated signals, with the aim to provide repeatable and reliable results. Dedicated test objects have been realized by using solutions of corn starch flour and of Chinese ink with different and calibrated dilutions. The spectral algorithm HyperSPACE (Hyper SPectral Analysis for Characterization in Echography), applied on ultrasonic and photoacoustic signals has allowed differentiating scatterers’ concentration and distribution.
机译：光声和超声的组合可以提供互补特征和互利，可用于完全组织特征，从而进行早期诊断或治疗监测。此外，需要微创技术，以达到无法访问的器官或组织，并降低患者的不适和成本。这项工作已经测试了一种原型微探测器，用于分析它们的光学和机械特征。两种不同的发射器构成小型化探针：一个用于大带宽超声信号的产生，一个用于将激光引导到组织中以上光超声波。目的是评估在未来采用这种新型微探针的可能性，以表征内部组织，结合超声波和光声调查。校准的商业水听器已被用于检测产生的信号，目的是提供可重复且可靠的结果。通过使用玉米淀粉面粉和中国油墨的溶液的溶液来实现专用的测试对象。超声波和光声信号施加在超声波和光声信号上施加的光谱算法超空间（超声波沉积中的特征），允许区分散射体的浓度和分布。

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  • 来源
    《Sensing and imaging》 |2020年第1期|34.1-34.13|共13页
  • 作者

    Simona Granchi; Enrico Vannacci; Lorenzo Miris; Luca Onofri; Duccio Zingoni; Elena Biagi;

  • 作者单位

    Ultrasound and Non‑Destructive Testing Lab Department of Information Engineering (DINFO) University of Florence via Santa Marta 3 50139 Florence Italy;

    Ultrasound and Non‑Destructive Testing Lab Department of Information Engineering (DINFO) University of Florence via Santa Marta 3 50139 Florence Italy;

    Ultrasound and Non‑Destructive Testing Lab Department of Information Engineering (DINFO) University of Florence via Santa Marta 3 50139 Florence Italy;

    Ultrasound and Non‑Destructive Testing Lab Department of Information Engineering (DINFO) University of Florence via Santa Marta 3 50139 Florence Italy;

    Ultrasound and Non‑Destructive Testing Lab Department of Information Engineering (DINFO) University of Florence via Santa Marta 3 50139 Florence Italy;

    Ultrasound and Non‑Destructive Testing Lab Department of Information Engineering (DINFO) University of Florence via Santa Marta 3 50139 Florence Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Photoacoustics; Ultrasound; Spectral processing; Media characterization; Fully fiber microprobe; Minimally invasiveness;

    机译：光声学;超声;光谱处理;媒体特征;全纤维微探针;最小的侵犯;

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