电脑图信号与在重症监护室记录的生理波形的真实赫兹同步
Andrew J Goodwin1,2, William Dixon2, Mjaye Mazwi2,3
1School of Biomedical Engineering, University of Sydney, Sydney, New South Wales, Australia.
Physiological measurement
|July 5, 2023
概括
我们开发了一种新的方法来同步来自不同设备的脑电图 (EEG) 和心电图 (ECG) 信号. 这种方法准确地对准生理数据,改善对大脑活动和身体功能的洞察力.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 临床监测 临床监测
背景情况:
- 连续电脑电图 (cEEG) 与生理波形 (ECG等) 的同步. 对于理解大脑与身体相互作用至关重要.
- 挑战包括不同的设备时钟和未经记录的同步协议,导致显著的时间错误.
研究的目的:
- 开发和验证一种方法,以追溯时间调整cEEG和其他从不同设备获得的临床波形数据集.
- 为应对非同步时钟和专有数据采集系统带来的挑战.
主要方法:
- 基于组合的模型被用来检测心跳器件在心电图信号.
- 在cEEG和ECG数据集之间匹配了节拍间隔向量.
- 强大的线性回归量化了设备之间的时间偏移和时钟漂移.
主要成果:
- 最初的计时错误范围从-84秒到+33秒.
- 该方法在超过61%的数据中提高了对准度,达到±5毫秒.
- 平均时钟漂移被确定为418.3ppm,并生成信号质量指数.
结论:
- 成功开发和测试了一种可靠的方法,用于从不同设备中追溯时间调整临床波形数据.
- 该方法适用于长期临床记录,考虑时钟漂移和不连续性.
- 这有助于更准确地分析合的生理和神经信号.
相关概念视频
01:30Pulse rhythm
848
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
848
01:23Brain Waves
1.6K
Brain waves are electrical signals generated by the neurons in the brain, which are regularly monitored to measure mental activities. Brain waves and their frequency ranges can be measured using an electroencephalogram or EEG. There are four main types of brain waves, each with distinct characteristics:
1.6K