基于外围压力波形的脉冲体积和心血管参数的非侵入性评估
Kamil Wołos1, Leszek Pstras1, Malgorzata Debowska1
1Laboratory of Mathematical Modeling of Physiological Processes, Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland.
PLoS computational biology
|April 18, 2024
概括
周围脉冲波分析显示,对估计中风体积 (SV) 和心血管特性进行非侵入性分析是有前途的. 这种方法可以整合到现有的设备中,以更好地评估心血管.
科学领域:
- 心血管生理学心血管生理学
- 生物医学工程 生物医学工程
- 医学诊断 医学诊断 医学诊断
背景情况:
- 心血管疾病是全球主要的死亡原因.
- 评估心血管状况的非侵入性方法至关重要.
- 外围脉冲波分析为此类评估提供了潜力.
研究的目的:
- 调查使用外围脉冲波记录来估计中风体积 (SV).
- 用数学建模来确定特定主体的心血管参数.
- 根据已知技术验证拟议的方法.
主要方法:
- 在35名血液透析患者和14名健康受试者中,使用平面化度计记录了周围压力波形.
- 使用了一个数学模型,将脉冲波传播和左心室弹性结合起来.
- 模型估计的SV是使用生物阻抗心脏学 (PhysioFlow) 验证的.
主要成果:
- 模拟和测量压力波形之间的平均绝对百分比误差很低 (2.8-4.0%).
- 在模型估计和基于生物阻抗的SV之间发现了中度的相关性 (r=0.57-0.58).
- 在估计的左心室末缩弹性和周围缩压 (r=0.70-0.84) 之间观察到显著的相关性.
结论:
- 拟议的方法表明了对SV和心血管特性进行非侵入性评估的潜力.
- 进一步验证和改进可能会提高临床应用的准确性.
- 该方法可以集成到现有的外围压力波形测量设备中.
相关概念视频
Assessment of the Cardiovascular System III: Palpation
323
Palpation involves feeling the body to evaluate texture, size, consistency, and tenderness for assessing cardiovascular health. The following steps are organized in a head-to-toe order:
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
Jugular Venous Pressure (JVP) Measurement
Position the patient at a thirty- to forty-five-degree angle or in a semi-fowler's position. Look for the highest point of pulsation in the internal jugular vein and measure the vertical distance to the angle of Loius or sternal angle. A normal JVP is 3-4 cm above...
323
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:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
1.3K
Assessment of blood pressure in brachial artery(one-step method)
585
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:
585
Assessment of blood pressure in brachial artery(two-step method)
704
Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
704
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...
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
Pulse Assessment Sites
1.0K
Pulse assessment sites are crucial in evaluating a patient's cardiovascular health. By assessing the pulsations of arteries at specific anatomical locations, healthcare professionals can gather valuable information about blood flow, heart rate, and peripheral circulation. Understanding these pulse assessment sites is essential for conducting comprehensive cardiovascular evaluations and monitoring patients' overall health. These sites are strategically chosen due to the accessibility and...
1.0K


