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IntroductionUltrasonography, or renal ultrasound, is a noninvasive medical imaging technique that uses high-frequency sound waves to visualize the kidneys, ureters, bladder, and surrounding tissues.Indications for Urinary System UltrasonographyUrinary system ultrasonography is indicated in various clinical scenarios, such as:Kidney Stones (Urolithiasis): To detect and monitor the size and presence of kidney or urinary tract stones.Hydronephrosis: To assess the dilation of the renal pelvis and...
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Related Experiment Video

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Blood Flow Imaging with Ultrafast Doppler
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Ultrasound Vector Flow Imaging-Part II: Parallel Systems.

Jorgen Arendt Jensen, Svetoslav Ivanov Nikolov, Alfred C H Yu

    IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
    |November 9, 2016
    PubMed
    Summary

    This review covers advanced ultrasound parallel acquisition systems for flow imaging. These systems use spherical and plane wave emissions for fast, sensitive velocity estimation in complex flows.

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    Area of Science:

    • Medical Imaging
    • Ultrasound Technology
    • Fluid Dynamics

    Background:

    • Traditional ultrasound flow imaging faces limitations in speed and sensitivity.
    • Parallel acquisition offers a novel approach to overcome these challenges.

    Purpose of the Study:

    • To review the state-of-the-art in ultrasound parallel acquisition systems for flow imaging.
    • To explain the underlying methods and advantages of these advanced techniques.

    Main Methods:

    • Utilizes spherical and plane wave emissions for ultrasound transmission.
    • Employs advanced algorithms for rapid velocity estimation.
    • Enables high-volume image acquisition for dynamic flow analysis.

    Main Results:

    • Achieves thousands of images per second for high-velocity flow.
    • Provides accurate estimates for low-velocity flow.
    • Facilitates assessment of complex flows with vortices and moving tissues.

    Conclusions:

    • Parallel acquisition systems represent a significant advancement in ultrasound flow imaging.
    • These techniques hold potential for functional ultrasound imaging and complex hemodynamic studies.