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Related Concept Videos

Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

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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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Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
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Ultrasonography01:17

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Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...
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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 I: Sequential 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 summary is machine-generated.

    This review details blood velocity vector flow imaging (VFI) methods for sequential data acquisition, covering 2D and 3D techniques, visualization, and clinical applications.

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    Area of Science:

    • Medical Imaging
    • Ultrasound Technology
    • Biomedical Engineering

    Background:

    • Blood velocity vector flow imaging (VFI) is crucial for understanding hemodynamics.
    • Conventional methods often face limitations in accuracy and comprehensive flow depiction.

    Purpose of the Study:

    • To provide a comprehensive review of established VFI methods for sequential data acquisition.
    • To discuss the evolution, current state, and future potential of VFI techniques.

    Main Methods:

    • Review of multibeam methods, speckle tracking, transverse oscillation, and color flow mapping derived VFI.
    • Inclusion of 2-D and 3-D velocity estimation techniques.
    • Analysis of various vector flow visualization algorithms and directional beamforming.

    Main Results:

    • Detailed historical perspective on VFI development.
    • Summary of current state-of-the-art VFI techniques and their variants.
    • Overview of clinical studies, presentation methods, and limitations of VFI.

    Conclusions:

    • VFI has advanced significantly, offering detailed hemodynamic insights.
    • Current limitations in VFI are being addressed with ongoing research and development.
    • Future directions include improved accuracy, broader clinical integration, and enhanced visualization.