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相关概念视频

Pulse rhythm01:30

Pulse rhythm

790
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...
790
Doppler Effect - II01:05

Doppler Effect - II

3.4K
The Doppler effect has several practical, real-world applications. For instance, meteorologists use Doppler radars to interpret weather events based on the Doppler effect. Typically, a transmitter emits radio waves at a specific frequency toward the sky from a weather station. The radio waves bounce off the clouds and precipitation and travel back to the weather station. The radio frequency of the waves reflected back to the station appears to decrease if the clouds or precipitation are moving...
3.4K
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

1.3K
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
1.3K
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

965
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
965
Special considerations while measuring pulse01:13

Special considerations while measuring pulse

578
Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
578

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相关实验视频

Updated: Jun 28, 2025

Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
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Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions

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基于多普勒雷达的心率变化监测,使用深度学习.

Sha Yuan1, Shaocan Fan1, Zhenmiao Deng1

  • 1School of Electronics and Communication Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, China.

Sensors (Basel, Switzerland)
|April 13, 2024
PubMed
概括

这项研究介绍了一种新的雷达网络,用于快速准确地监测生命体征. 它使用仅4秒的雷达数据精确估计心率 (HR) 和心率变化 (HRV),提高检测速度和准确性.

科学领域:

  • 生物医学工程 生物医学工程
  • 信号处理 信号处理
  • 雷达技术 雷达技术的使用

背景情况:

  • 使用微波多普勒雷达的非接触式生命体征检测显示出有希望的结果.
  • 目前基于雷达的心率 (HR) 和心率变化 (HRV) 方法需要超过10秒的数据,导致延迟和不准确的HRV估计.

研究的目的:

  • 从简短的雷达时间序列开发一个新的网络,用于精确的HR估计和HRV监控.
  • 为了减少检测延迟并提高非接触式生命体征监测中的HRV精度.

主要方法:

  • 开发了一个新的网络,集成了一个频率表示模块和一个残留模块中的残留.
  • 该网络将时间域雷达信号转换为频域,用于高分辨率的频谱表示.
  • 该模型使用模拟,频率调制连续波 (FMCW) 雷达和连续波 (CW) 雷达数据与4秒的数据长度进行了验证.

主要成果:

  • 该算法在缩短数据长度的情况下实现了超过95%的平均心率测量准确度.
  • 尽管数据持续时间缩短,但HRV的估计准确度仍然保持.
  • 与现有方法相比,开发的网络显著降低了延迟.

结论:

关键词:
人权高官,人权高人,人权高人.深度学习是一种深度学习.神经网络的神经网络的神经网络雷达 雷达 雷达 雷达 是一个

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  • 该研究引入了一种高效的算法,用于使用简洁的雷达数据来估计HR和HRV.
  • 这种方法为非接触式生命体征检测系统提供了重要的实用价值.
  • 这种方法提高了实时,准确的生命体征监测的可行性.