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相关概念视频

Imaging Studies II: Ultrasonography01:24

Imaging Studies II: Ultrasonography

58
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...
58
Computed Tomography01:10

Computed Tomography

6.3K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
6.3K
Ultrasonography01:17

Ultrasonography

6.2K
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...
6.2K

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相关实验视频

Updated: Sep 14, 2025

Real-time Monitoring of High Intensity Focused Ultrasound HIFU Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound HMIFU
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Real-time Monitoring of High Intensity Focused Ultrasound HIFU Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound HMIFU

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一个紧的2D矩阵阵列,由六边形传感器元件组成,用于快速体积超声波成像.

Hugues Favre, Merijn Berendsen, Rick Waasdorp

    IEEE transactions on ultrasonics, ferroelectrics, and frequency control
    |July 21, 2025
    PubMed
    概括

    新的4D超声波成像采用六边形的传感器元素,提高操作员的独立性和图像质量. 这种紧的2D阵列设计提供了最佳的采样和较低的格子叶片与传统的方形阵列相比.

    科学领域:

    • 生物医学工程 生物医学工程
    • 医学成像技术 医学成像技术
    • 超声波物理 超声波物理

    背景情况:

    • 操作员的依赖一直是传统的4D超声波成像中的一个重大挑战.
    • 二维传感器阵列的进步对于下一代四维成像系统至关重要.
    • 当前的二维数组在采样效率和成像性能方面经常面临局限性.

    研究的目的:

    • 介绍一个新的紧的2D阵列设计,用于4D超声波成像.
    • 与传统的方形元件相比,评估六角形的传感器元件的性能.
    • 为了证明六角阵列在减少操作员依赖和提高图像质量的潜力.

    主要方法:

    • 使用六角元素形状设计和制造一个紧的二维传感器阵列.
    • 六角阵列原型的特征.
    • 对成像质量和格叶水平与传统的方形元素数组进行比较分析.

    主要成果:

    • 六边形的2D阵列设计实现了最佳的紧采样.
    • 与方形元素相比,与六角元素观察到较低的格子叶片水平.
    • 原型阵列展示了卓越的成像能力,表明图像质量得到了改善.

    更多相关视频

    Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time
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    3D Ultrasound Imaging: Fast and Cost-effective Morphometry of Musculoskeletal Tissue
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    3D Ultrasound Imaging: Fast and Cost-effective Morphometry of Musculoskeletal Tissue

    Published on: November 27, 2017

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    相关实验视频

    Last Updated: Sep 14, 2025

    Real-time Monitoring of High Intensity Focused Ultrasound HIFU Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound HMIFU
    07:38

    Real-time Monitoring of High Intensity Focused Ultrasound HIFU Ablation of In Vitro Canine Livers Using Harmonic Motion Imaging for Focused Ultrasound HMIFU

    Published on: November 3, 2015

    10.1K
    Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time
    09:56

    Universal Hand-held Three-dimensional Optoacoustic Imaging Probe for Deep Tissue Human Angiography and Functional Preclinical Studies in Real Time

    Published on: November 4, 2014

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    3D Ultrasound Imaging: Fast and Cost-effective Morphometry of Musculoskeletal Tissue
    08:52

    3D Ultrasound Imaging: Fast and Cost-effective Morphometry of Musculoskeletal Tissue

    Published on: November 27, 2017

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    结论:

    • 六角变频元件在4D超声波中为2D阵列设计提供了显著的优势.
    • 这种新的设计带来了更好的成像质量和更少的操作员依赖.
    • 开发的六角二维阵列代表了未来生物医学研究和临床应用的有希望的进步.