持续和自主监测左心室dP/dtmax的变化,使用心上加速度计
Vetle Christoffer Frostelid1,2, Ali Wajdan1,2, Manuel Villegas-Martinez1,3
1The Intervention Centre, Oslo University Hospital, Oslo, Norway.
Annals of biomedical engineering
|August 18, 2025
概括
一种使用表心加速计的新方法可以重建3D心脏壁运动,从而能够持续监测心脏收缩率. 这种方法提供了一个有希望的,不那么侵入性的工具来跟踪心脏功能随着时间的推移.
科学领域:
- 生物医学工程 生物医学工程
- 心血管生理学心血管生理学
- 医疗器械技术 医疗器械技术
背景情况:
- 评估心脏收缩功能通常依赖于侵入性或间歇性方法,限制持续监测.
- 脊心加速仪为心脏功能监测提供了潜力,但往往未充分利用信号数据.
- 现有的技术缺乏空间和时间分辨率,无法进行可靠的,持续的临床评估.
研究的目的:
- 开发一种用于在3D空间中重建心上加速度计位置的方法.
- 为了使心脏功能指数可以在拉格朗日参考框架中提取.
- 通过使用加速度计数据,引入一种新的心脏收缩率替代指标.
主要方法:
- 心上加速度计3D位置的重建.
- 在拉格朗的框架中提取心脏功能指数.
- 计算拉格朗的标准偏差加速度 (
主要成果:
- 拉格朗捷加速度的标准偏差 (
- 在
σ Acc - 在动物数据 (n=29) 中,在各种血液动力学条件中观察到强烈的相关性.
结论:
- 这项原则证明研究引入了一种使用心表加速度计评估心脏收缩率的新方法.
- 这些发现表明,长期持续监测心脏功能的潜力.
- 心加速计可以被用作心脏健康的多功能,自主监测设备.
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