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Registered Bioimaging of Nanomaterials for Diagnostic and Therapeutic Monitoring
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Anatomic and Functional Imaging Using Row-Column Arrays.

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    Row-column (RC) arrays enable high-quality 3-D ultrasound imaging with fewer elements. Advanced techniques like synthetic aperture (SA) and GPU beamforming achieve near real-time, high-resolution anatomic and functional imaging.

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    Area of Science:

    • Ultrasound imaging
    • Medical imaging technology
    • Array signal processing

    Background:

    • Row-column (RC) arrays offer reduced element counts for 3-D ultrasound but face geometric challenges.
    • Current 1-D arrays have limitations in achieving full 3-D volumetric imaging.

    Purpose of the Study:

    • To review the literature on RC array imaging.
    • To demonstrate the potential of RC arrays for high-quality 3-D anatomic and functional ultrasound imaging.

    Main Methods:

    • Utilizing synthetic aperture (SA) sequences and modified delay-and-sum beamforming.
    • Employing Graphics Processing Unit (GPU) beamforming for near real-time processing.
    • Applying transverse oscillation and SA sequences for tensor velocity imaging.

    Main Results:

    • Achieved high-quality full 3-D imaging with isotropic resolution near the diffraction limit.
    • Demonstrated near real-time (30 Hz) 3-D plane beamforming for improved workflow.
    • Enabled functional imaging of 3-D velocity vectors for blood and tissue motion.
    • Showcased super-resolution imaging (SRI) with contrast agents.

    Conclusions:

    • RC arrays, with SA sequences and GPU beamforming, provide high-resolution, high-contrast, and high-volumetric rate 3-D imaging.
    • RC arrays offer comparable channel counts to 1-D arrays while delivering superior 3-D capabilities.
    • This technology is suitable for both anatomic and functional ultrasound applications.