转移学习 基于灵活的光脉冲传感贴片的增强血压监测
Zecong Liu1,2, Chao Xiang3, Yeyu Tong4
1Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, Guangdong, China.
ACS sensors
|April 15, 2025
概括
一个新的光学脉冲传感贴片提供连续血压 (BP) 监测. 这种可穿戴技术使用化光对和机器学习进行精确的心血管健康评估.
科学领域:
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
- 心血管研究研究心血管研究
背景情况:
- 血压 (BP) 是检测心血管疾病 (CVD) 的重要生物标志物.
- 基于手的血压监测缺乏持续的舒适性和实时数据.
- 在临床环境中需要非侵入性,长期的血压监测解决方案.
研究的目的:
- 开发一个光学脉冲传感贴片,用于连续和舒适的血压监测.
- 利用机器学习将脉冲波信号转化为BP指标.
- 为了简化模型校准,使用转移学习进行实际实施.
主要方法:
- 化 (GaN) 光对与微纳结构聚甲基酸薄膜的整合.
- 使用光学传感贴片捕获多点脉冲波信号.
- 机器学习的应用,包括转移学习,用于信号处理和BP估计.
主要成果:
- 光学传感贴片成功捕获了脉冲波.
- 机器学习模型将脉冲信号转化为血压和心血管指标.
- 转移学习使模型能够在最少的训练数据下进行校准.
结论:
- 开发的光学传感贴片使得精确的,长期的BP监测.
- 这项技术在改善心血管疾病诊断和管理方面具有重大潜力.
- 可穿戴式传感器为传统的BP测量方法提供了舒适和连续的替代方案.
相关概念视频
Equipments 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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Assessing Blood pressure using a doppler ultrasound
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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:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
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Pulse rhythm
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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...
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Special 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:
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.
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.
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Errors occurring during blood pressure monitoring
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Blood pressure monitoring is a crucial clinical procedure in diagnosing and managing various cardiovascular conditions. Despite its significance, the accuracy of blood pressure measurements can be compromised by multiple factors, potentially leading to either falsely high or low readings. These inaccuracies are critical as they can significantly impact patient care. So, it is vital to understand these challenges deeply and adopt strategic approaches to minimize errors.
Several factors...
Several factors...
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Assessment of blood pressure in brachial artery(one-step method)
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This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
Prepare for the Procedure:
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