一个计算建模框架,用于对心脏映射系统的临床前评估
Suran Galappaththige1, Pras Pathmanathan1, Richard A Gray1
1Division of Biomedical Physics, Office of Science and Engineering Laboratories, Center for Devices and Radiological Health, Food and Drug Administration, Silver Spring, MD, United States.
Frontiers in physiology
|July 24, 2023
概括
这项研究引入了一个计算框架,以严格评估心脏映射系统. 它使用计算机模拟来评估识别和定位心律失常的准确性,建立了一个新的性能指标.
科学领域:
- 计算建模计算建模
- 心脏电生理学心脏电生理学
- 医疗器械评估 医疗器械评估
背景情况:
- 评估临床心脏映射系统是具有挑战性的,因为缺乏一个临床心脏映射系统.
- 黄金标准就是黄金标准.
- 用于跨膜潜力的记录.
- 心脏映射系统集成硬件,软件和算法,所有这些都在快速发展.
研究的目的:
- 开发一个计算建模框架来评估心脏映射系统的性能.
- 为了能够严格评估局部化和表征心律失常源的能力.
- 为评估系统准确性和可靠性提供标准化的方法.
主要方法:
- 创建了一个计算机模拟心脏电活动的图书馆,其中包含已知的心律失常源类型和位置.
- 能够对各种电极配置,心脏几何形状,心律失常和电图噪声水平进行评估.
- 使用了一个使用一个.
- 银标准的白银标准.
- 已知跨膜潜力的盲目比较与映射系统.
主要成果:
- 一项可行性研究用虚拟导管阵列模拟了人类左心房模式.
- 确定了1毫秒以下的激活时间 (AcTs) 的平均根平均平方差异是一个不够的性能指标.
- 引入了一种新的指标,量化正确和虚假激活模式 (AcP) 识别,心律失常错误分类和定位精度.
结论:
- 开发的计算框架为心脏映射系统性能提供了严格的定量分析.
- 概念验证证明了框架的潜力,以确保映射系统按预期运行.
- 该框架可以提供对心脏映射系统准确性和可靠性的关键估计.
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