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相关概念视频

Assessment of radial pulse01:11

Assessment of radial pulse

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Assessment of Radial Pulse
The radial pulse, located at the wrist, is often the preferred site for assessing peripheral pulse because of its accessibility and dependability. The process of determining the radial pulse involves several steps:
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相关实验视频

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Fundus Photography as a Convenient Tool to Study Microvascular Responses to Cardiovascular Disease Risk Factors in Epidemiological Studies
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近红外前臂血管宽度使用半径估计的触角圆的计算.

Qianru Ji1, Haoting Liu1, Zhen Tian1

  • 1Beijing Engineering Research Center of Industrial Spectrum Imaging, School of Automation and Electrical Engineering, University of Science and Technology Beijing, Beijing 100083, China.

Bioengineering (Basel, Switzerland)
|August 29, 2024
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概括

这项研究引入了一种新的算法,用于使用近红外成像计算前臂血管宽度. 接触圆的半径估计 (RETC) 方法比传统技术提供了更好的准确性.

关键词:
在 APSLSE 图像分割.边缘检测 边缘检测 边缘检测几何特征 几何特征 几何特征图像增强 图像增强 图像增强接近红外图像的近红外图像接触圆的半径估计 (RETC)骨提取 骨提取 骨提取血管宽度 血管宽度

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科学领域:

  • 医疗成像医学成像
  • 生物医学工程 生物医学工程
  • 血管生物学 血管生物学

背景情况:

  • 精确测量前臂血管宽度对于评估血管健康至关重要.
  • 现有的船舶宽度计算方法可能缺乏精度,特别是船舶方向和几何特征.

研究的目的:

  • 为前臂近红外图像提出和评估一种新的血管宽度计算算法.
  • 通过考虑血管骨方向和几何特征来提高血管宽度测量的准确性.

主要方法:

  • 接近红外图像的预处理,包括裁剪,对比度拉伸,消噪,增强和细分.
  • 使用张苏恩精炼算法提取血管骨.
  • 通过Canny边缘检测方法进行血管边缘检测.
  • 开发和应用触角圆 (RETC) 算法的半径估计算法,用于计算船舶宽度.

主要成果:

  • 拟议的RETC算法在计算前臂血管宽度方面表现出高准确性.
  • 实验结果显示平均绝对误差为0.36和差异为0.10.
  • 与传统的测量方法相比,RETC算法显著减少了错误.

结论:

  • RETC算法提供了一种更准确和可靠的方法,用于从近红外图像中测量前臂血管宽度.
  • 这种算法考虑了血管几何和方向,从而提高了其临床适用性.
  • 这些发现表明,在血管健康评估中改善诊断能力的潜力.