Frequency Domain Two-Stage Beamforming for Phased Array Imaging Using the Fast Hankel Transform

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    Abstract

    The huge amount of data that needs to be transferred between probe and imaging system becomes a major issue when the data transfer capacity is limited, e.g. in handheld systems, wireless probes and miniaturized probes. The amount of data can be significantly reduced by using two-stage beamforming. The first stage consists of a fixed focus algorithm that compresses channel data to scanline data. This can be done by integrated electronics in the handle. In the second stage the scanline data is further beamformed in the imaging system to obtain images that are synthetically focused at all depths. Here we present a wave equation two-stage beamforming method for phased array imaging that is computationally efficient and outperforms PSASB, a time-of-flight alternative, in terms of lateral resolution and contrast-to-noise ratio.
    Original languageEnglish
    Title of host publication2018 IEEE International Ultrasonics Symposium, IUS 2018
    EditorsKen-ya Hashimoto, Clemens Ruppel
    PublisherIEEE
    Number of pages4
    Volume2018-October
    ISBN (Electronic)978-153863425-7
    DOIs
    Publication statusPublished - 2018
    Event2018 IEEE International Ultrasonics Symposium, IUS 2018 - Portopia Hotel, Kobe, Japan
    Duration: 22 Oct 201825 Oct 2018

    Conference

    Conference2018 IEEE International Ultrasonics Symposium, IUS 2018
    Abbreviated titleIUS 2018
    CountryJapan
    CityKobe
    Period22/10/1825/10/18

    Bibliographical note

    Accepted Author Manuscript

    Keywords

    • migration
    • phased array
    • synthetic aperture
    • two-stage beamforming
    • Ultrasound imaging

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