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Denoising Plane Wave Ultrasound Images Using Diffusion Probabilistic Models.

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    IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
    |August 26, 2024
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    This study introduces a novel denoising method for ultrasound plane wave (PW) imaging, significantly reducing noise in high frame-rate ultrasound images. The technique enhances image quality across simulated, phantom, and in vivo data.

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    Area of Science:

    • Medical Imaging
    • Ultrasound Technology
    • Image Processing

    Background:

    • High frame-rate ultrasound imaging, particularly plane wave (PW) imaging, offers advanced visualization capabilities.
    • A significant challenge in high frame-rate ultrasound is the high noise level, which compromises image quality and limits clinical adoption.
    • Effective denoising methods are crucial for improving the utility of PW ultrasound images.

    Purpose of the Study:

    • To develop and evaluate a novel denoising method for plane wave (PW) ultrasound imaging.
    • To enhance the quality of high frame-rate ultrasound images by reducing noise.
    • To adapt denoising diffusion probabilistic models (DDPMs) for beamformed radio frequency (RF) data in ultrasound.

    Main Methods:

    • Adapted a denoising diffusion probabilistic model (DDPM) to process beamformed radio frequency (RF) data.
    • Trained the model using a dataset of 400 simulated ultrasound images.
    • Utilized natural image segmentation masks as intensity maps for generated images, enabling accurate denoising across diverse anatomical structures.

    Main Results:

    • The proposed method effectively reduced noise in simulated plane wave (PW) ultrasound images.
    • Demonstrated significant improvements in image quality for phantom and in vivo ultrasound data.
    • Comparative analysis showed superior performance against existing denoising techniques across multiple evaluation metrics.

    Conclusions:

    • The DDPM-based denoising approach successfully enhances the quality of high frame-rate ultrasound images.
    • The method is effective for simulated, phantom, and in vivo data, addressing noise challenges in PW imaging.
    • This technique holds promise for broader adoption of high frame-rate ultrasound imaging in clinical practice.