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相关概念视频

Assessment of the Cardiovascular System III: Palpation01:27

Assessment of the Cardiovascular System III: Palpation

321
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
321

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相关实验视频

Updated: Jun 27, 2025

Diffuse Reflectance Spectroscopy: Getting the Capillary Refill Test Under One's Thumb
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定量毛细血管补充时间与基于图像的指力估计.

Takumi Nagasawa1, Kazuki Iwata1, Raquel Pantojo de Souza Bachour2

  • 1Department of Imaging Science, Graduate School of Science and Engineering, Chiba University, Chiba, 263-8522, Japan.

Medical engineering & physics
|May 1, 2024
PubMed
概括

本研究介绍了一种基于相机的方法,用于客观地测量毛细血管补充时间 (CRT). 这项技术量化了皮肤颜色的变化,有助于对未经训练的人进行健康状况评估.

关键词:
毛细血管补充时间用手指进行压缩压缩.爪子的颜色发生变化.颜料组件分离的分离方法这是一个RGB摄像头.

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Non-invasive Assessment of Microvascular and Endothelial Function
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相关实验视频

Last Updated: Jun 27, 2025

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科学领域:

  • 生物医学工程 生物医学工程
  • 医学诊断 医学诊断 医学诊断
  • 光学传感传感器是什么?

背景情况:

  • 皮肤颜色评估是一种简单的,非侵入性的健康指标.
  • 毛细血管补充时间 (CRT) 对于评估患者的健康状况至关重要,特别是在紧急情况下.
  • 目前的CRT测量是主观的,缺乏标准化.

研究的目的:

  • 开发一种使用RGB相机进行CRT测量的定量方法.
  • 克服传统CRT评估中固有的主观性.
  • 通过可访问的技术实现客观的健康状况评估.

主要方法:

  • 在CRT测量过程中使用RGB相机进行皮肤颜色分析.
  • 在前臂上实施了手指压缩技术.
  • 根据观察到的压缩后皮肤颜色变化计算CRT.
  • 通过分析指甲颜色变化,估计应用的压缩力.

主要成果:

  • 展示了一种基于摄像头的定量CRT测量方法.
  • 展示了客观评估流通状态的潜力.
  • 为开发非侵入性诊断工具提供了基础.

结论:

  • 基于摄像头的CRT测量为主观方法提供了一个有希望的客观替代方案.
  • 这种方法可以帮助医疗保健专业人员,并可能被未经培训的个人使用.
  • 进一步的开发可以提高这种诊断技术的准确性和适用性.