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相关概念视频

Ultrasonography01:17

Ultrasonography

4.6K
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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Ultrasound II: Endoscopic Ultrasound and FibroScan01:25

Ultrasound II: Endoscopic Ultrasound and FibroScan

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Endoscopic Ultrasound (EUS) and FibroScan are valuable diagnostic tools in gastroenterology and hepatology, each with specific applications and techniques.
Endoscopic Ultrasound (EUS):
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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 I: Abdominal Ultrasonography01:20

Ultrasound I: Abdominal Ultrasonography

287
Introduction:
Abdominal ultrasonography, commonly known as abdominal ultrasound, is a vital, non-invasive medical imaging technique widely used in healthcare.
Procedure:
This diagnostic tool allows the clinician to visually inspect internal structures within the abdomen, including vital organs such as the liver, gallbladder, pancreas, kidneys, and spleen.
The abdominal ultrasound process begins with applying a special gel to the patient's skin over the abdomen. This gel enhances the...
287

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相关实验视频

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An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging
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定量超声波:实验性实施

Michael Oelze1

  • 1Department of Electrical and Computer Engineering and Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Champaign, IL, USA. oelze@illinois.edu.

Advances in experimental medicine and biology
|July 26, 2023
PubMed
概括
此摘要是机器生成的。

估计一个关键组织属性的反散系数,需要系统独立性. 本研究探讨了校准和降噪方法,以实现准确的,独立于操作者的组织特征.

关键词:
减弱补偿是减弱的补偿.校准 校准 校准 校准 校准 校准一个平面的参考点.参考幻影是一个假象.窗口功能 窗口功能

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Author Spotlight: Advancing Human Brain Modulation – Optimized Protocols for Transcranial Ultrasound Stimulation Experiments
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Author Spotlight: Advancing Human Brain Modulation – Optimized Protocols for Transcranial Ultrasound Stimulation Experiments

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A Novel Application of Musculoskeletal Ultrasound Imaging
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A Novel Application of Musculoskeletal Ultrasound Imaging

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相关实验视频

Last Updated: Jul 21, 2025

An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging
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An Experimental Protocol for Assessing the Performance of New Ultrasound Probes Based on CMUT Technology in Application to Brain Imaging

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Author Spotlight: Advancing Human Brain Modulation – Optimized Protocols for Transcranial Ultrasound Stimulation Experiments
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A Novel Application of Musculoskeletal Ultrasound Imaging
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科学领域:

  • 生物医学超声波 生物医学超声波
  • 声学成像 声学成像
  • 组织特征鉴定

背景情况:

  • 回散系数是一种基本的组织特性,类似于衰减和声速.
  • 它提供了对散射器特性和底层组织状态的洞察.
  • 准确的估计对于可靠的组织表征至关重要.

研究的目的:

  • 为了实现系统和运营商独立估计的回散系数.
  • 讨论获得校准频谱的方法.
  • 为了解决反散系数频谱估计中的决定性降噪问题.

主要方法:

  • 讨论了获得校准频谱的三个不同的方法.
  • 将每个校准方法固有的工程权衡进行比较.
  • 考虑了在回散系数频谱中减轻决定性噪声的技术.

主要成果:

  • 确定了系统和运营商独立的回散系数估计的关键考虑因素.
  • 提供了不同校准频谱获取策略的比较分析.
  • 概述了适用于回散系数光谱的确定性降噪方法.

结论:

  • 通过适当的校准,可以实现对回散系数的系统和操作员独立估计.
  • 了解工程权衡对于选择最佳校准方法至关重要.
  • 有效的降噪技术对于准确的回散系数频谱分析至关重要.