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相关概念视频

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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Elastic Strain Energy for Shearing Stresses01:20

Elastic Strain Energy for Shearing Stresses

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As discussed in previous lessons, strain energy in a material is the energy stored when it is elastically deformed, a concept crucial in materials science and mechanical engineering. This energy results from the internal work done against the cohesive forces within the material. When a material undergoes shearing stress and corresponding shearing strain, the strain energy density, which is the energy stored per unit volume, is calculated. Within the elastic limit, where the stress is...
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A Probing Device for Quantitatively Measuring the Mechanical Properties of Soft Tissues during Arthroscopy
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用剪波弹性学测量上肢软组织刚度:一项白天间可靠性研究.

Joseph M Day1, Harold Merriman1

  • 1Department of Physical Therapy, University of Dayton, Ohio, USA.

Shoulder & elbow
|April 24, 2024
PubMed
概括

剪波弹性图表显示了可接受的可靠性,用于测量乳房肌肉和常见的手腕伸缩器中的软组织度. 这种技术为评估上肢功能提供了准确,可重复,客观的数据.

科学领域:

  • 生物力学 生物力学
  • 肌肉骨超声波 肌肉骨超声波
  • 医疗成像医学成像

背景情况:

  • 乳房肌肉和常见手腕伸缩器 (CWE) 的软组织硬 (STS) 失衡可能会对上肢功能产生负面影响.
  • 剪波弹性图 (SWE) 提供了精确,可重复和客观的STS测量.

研究的目的:

  • 为了确定SWE在测量胸部和CWE肌硬度的日间内部可靠性.

主要方法:

  • 2D SWE超声成像被用来测量STS (千帕斯卡的剪波模量) 在胸前大,胸前小和CWE双边.
  • 测量是在两个不同的日子由同一个检查员.
  • 计算了类内相关系数 (ICC (3,3),测量的标准误差和最小可检测变化以评估可靠性.

主要成果:

  • 在所有测量肌肉中发现了可接受的日间内射器可靠性.
  • 对大胸的ICC值从0.63到0.70不等.
  • 对小胸部和CWE肌的ICC值始终为0.75.

结论:

  • 在评估胸部和CWE肌硬度方面,SWE具有可接受的可靠性.
  • 未来的研究应该对可能影响STS测量的变量进行控制.
关键词:
常见的手腕延伸器肌.胸部 (pectoralis) 的一个部分.剪切波模块的剪切波模块是什么超声波成像的成像方法

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