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相关概念视频

Chambers of the Heart01:16

Chambers of the Heart

The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
Deoxygenated blood from the body is received in the right...

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相关实验视频

Updated: Jun 15, 2026

Author Spotlight: Advancements in Intracardiac Echocardiography for Atrial Anatomy Assessment
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在规模上构建双层和体积心房模型.

Caroline H Roney1,2, Jose Alonso Solis Lemus2,3, Carlos Lopez Barrera1,4

  • 1School of Engineering and Materials Science, Queen Mary University of London, London, UK.

Interface focus
|December 18, 2023
PubMed
概括

一个新的开源管道允许快速,可重复的心脏模型建设用于大规模的in silico试验. 这个工具研究了纤维化和纤维方向等因素如何影响心房动的动态.

关键词:
心脏节律失常 心脏节律失常计算模型是一种计算模型.数字双胞胎数字双胞胎是什么意思在Silico试验中的试验患者特有的心脏模型.

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科学领域:

  • 计算生物学 计算生物学
  • 心脏电生理学 心脏电生理学
  • 医疗成像医学成像

背景情况:

  • 大规模的in silico试验和个性化的心脏模型预测需要高效和可重复的模型构建.
  • 现有的方法在规模生成心脏模型方面面临挑战,特别是对于心房模型.
  • 了解解剖学和生理学因素对心脏动态的影响对于临床应用至关重要.

研究的目的:

  • 开发一个强大的,开源的管道,以在规模上构建双层和体积心房模型.
  • 为了研究心脏纤维,纤维化和模型表示对心房动力学的影响.
  • 为了实现个性化的心脏模型预测和大规模的in silico临床试验.

主要方法:

  • 扩展了一个坐标系统,以纳入跨度,心房区域和纤维方向 (基于规则或扩散张力MRI驱动的).
  • 使用CT,MRI和电解剖学绘图数据生成了1000个双心层和体积模型的队列.
  • 模拟了纤维动态,并分析了模型类型,纤维化和纤维场对模拟结果的影响.

主要成果:

  • 在CT队列中,动动态显示了双层和体积模型之间的差异 (LA:0.27 ± 0.19,RA:0.41 ± 0.14相关性).
  • 纤维化重塑稳定了重新进入,减少了模型类型对动态的影响 (LA:0.52 ± 0.20,RA:0.36 ± 0.18).
  • 纤维场的选择对节奏激活的影响最小 (<12毫秒),但显著影响了纤维动态.

结论:

  • 开发和验证了一个开源的,用户友好的管道 (atrialmtk) 用于从成像和电解剖数据生成心房模型.
  • 该管道有助于创建个性化的心脏模型,用于大规模的in silico临床试验.
  • 研究结果强调了模型表示,纤维方向和纤维化在模拟心房动力学方面的重要性.