从各种环境中的面部视频中进行可靠的血压测量
Jin-Soo Park1, Kwang-Seok Hong2
1Department of Electrical and Computer Engineering, Sungkyunkwan University, 2066 Seobu-ro, Jangan-gu, Suwon-si, 16419, Republic of Korea.
这项研究引入了一种新的方法,用于使用面部视频进行强大的血压 (BP) 监测. 该技术在各种环境中准确测量BP,克服了传统和基于接触的方法的局限性.
科学领域:
- 生物医学工程 生物医学工程
- 心血管健康 心血管健康
- 信号处理 信号处理
背景情况:
- 传统的血压 (BP) 监测设备在经常使用时可能不舒服且不切实际.
- 现有的光聚缩法 (PPG) 方法需要传感器接触,在各种环境中难以准确.
- 以前使用视频进行的非接触式BP测量研究在外部环境中遇到了准确性问题.
研究的目的:
- 开发一种使用面部视频测量血压 (BP) 的强大,非接触式方法.
- 在各种环境条件下克服传统BP计和PPG传感器的局限性.
- 提高定期BP监测的准确性和实用性.
主要方法:
- 使用的脉冲波速率 (PWV) 和脉冲传输时间 (PTT) 根据面部视频计算.
- 通过测量面部视频中两个感兴趣区域 (ROI) 之间的相位差异来估计PTT.
- 使用PTT计算PWV和ROI之间的估计距离,为BP测量提取脉冲波.
主要成果:
- 拟议的方法在各种环境中展示了强大的BP测量能力,包括室内,室外,汽车和无人机设置.
- 面部视频分析提供了与传统血压计可比的准确血压读数.
- 该技术使用提取的脉冲波有效估计了ROI和PTT之间的距离.
结论:
- 开发的基于面部视频的方法为准确和非接触式血压监测提供了一个有希望的解决方案.
- 这种方法提高了在现实场景中持续和无处不在的BP监测的可行性.
- 该研究强调了先进的信号处理技术在非侵入性生理测量方面的潜力.
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相关概念视频
Special considerations while measuring blood pressure
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Pre-Procedural Guidelines for Assessing Blood Pressure
Assessment of blood pressure in brachial artery(one-step method)
Prepare for the Procedure:
Assessment of blood pressure in brachial artery(two-step method)
Measurement of Blood Pressure
Equipments Used To Measure Blood Pressure
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...
