使用机器学习模型,通过弹性心电图和阻抗囊图估计无袖血压
Shing-Hong Liu1, Yao Sun2, Bo-Yan Wu1
1Department of Computer Science and Information Engineering, Chaoyang University of Technology, Taichung City, Taiwan.
Frontiers in digital health
|March 10, 2025
概括
这项研究开发了一种无袖式血压测量方法,使用体重-脂肪尺度的弹性心脏图和阻抗复合图. 该技术实现了高精度估计心压和腹压血压,为移动健康应用铺平了道路.
科学领域:
- 生物医学工程 生物医学工程
- 信号处理 信号处理
- 机器学习 机器学习
背景情况:
- 血压 (BP) 监测对于管理高血压和心血管疾病至关重要.
- 传统的袖子式血压计与移动健康 (mHealth) 应用不兼容.
- 无袖式血压测量为连续和方便的监测提供了一个有希望的替代方案.
研究的目的:
- 开发和验证无袖血压估计方法,使用重量-脂肪尺度的弹性心脏图 (BCG) 和阻抗复合图 (IPG).
- 利用深度学习和机器学习进行准确的信号质量分类和BP参数提取.
- 评估将该技术集成到移动健康设备中的可行性.
主要方法:
- 为了BCG和IPG信号质量分类,使用了一种组合1D卷积神经网络 (1D CNN) 和门式循环单元 (GRU) 的堆叠模型.
- 脉冲传输时间 (PTT) 参数从BCG和IPG信号中提取.
- 采用随机森林 (RF) 和XGBoost模型,使用PTT参数和心率 (HR) 来估计缩性血压 (SBP) 和腹缩性血压 (DBP).
主要成果:
- 信号质量分类实现了0.989.9的准确性.
- 五次交叉验证产生了高的皮尔森相关系数:SBP的0.953 ± 0.007和DBP的0.935 ± 0.007.
- 在XGBoost模型中,平均绝对差异较小:SBP的3.54 ± 0.34 mmHg,DBP的2.57 ± 0.17 mmHg.
结论:
- 拟议的方法显著提高了无袖血压测量的准确性.
- 将其集成到体重-脂肪计量表中,为mHealth应用提供了一个不受限制的设备.
- 这项技术有可能改善远程患者监测和心血管健康的管理.
相关概念视频
01:30Equipments Used To Measure Blood Pressure
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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...
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...
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01:28Special considerations while measuring blood pressure
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When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
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Monitoring Both Arms:
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01:21Sites for measruring blood pressure
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01:19Assessing Blood pressure using a doppler ultrasound
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Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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Preparation of Equipment:
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01:17Measurement of Blood Pressure
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Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
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01:10Pre-Procedural Guidelines for Assessing Blood Pressure
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