由振动声学传感器提供的心血管状态的机械评估
Ali Zare1, Emily Wittrup1, Kayvan Najarian1,2,3,4
1Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48103, USA.
Sensors (Basel, Switzerland)
|April 13, 2024
概括
这项研究引入了一种新的AI方法,通过通过声学信号定制心血管模型来估计血压. 这种方法可以个性化监测血压,以便更好地预测心血管事件.
科学领域:
- 生物医学工程 生物医学工程
- 人工智能的人工智能
- 心血管生理学心血管生理学
背景情况:
- 血压监测对于预测心血管事件至关重要.
- 现有的心血管模型缺乏针对个体生物力学变化的个性化.
- 诸如药物等因素可以显著改变心血管系统的特性.
研究的目的:
- 提出一种新的AI驱动的血压估计方法.
- 使用心肺声学信号来定制机械心血管模型.
- 通过结合个人生物力学数据来个性化心血管建模.
主要方法:
- 从心肺声学信号中提取特征.
- 人工智能应用程序用于模型定制.
- 使用振动声学传感器数据来个性化生物机械性质.
- 对血压估计的拟议方法的模拟.
主要成果:
- 拟议的方法在估计血压方面表现有前途.
- 对血压估计与动脉线测量进行了错误分析.
- 个性化建模表明了精确血压跟踪的潜力.
结论:
- 这种新的AI方法为个性化血压估计提供了一个有希望的方法.
- 用声学数据定制机械心血管模型可以改善心血管监测.
- 这种技术有可能提高心血管事件的预测.
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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01:19Assessing 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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01:15Assessment 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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01:27Assessment of the Cardiovascular System III: Palpation
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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...
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01:25Assessment of the Cardiovascular System IV: Auscultation
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Cardiac auscultation is a clinical skill used to assess heart function and detect abnormalities. It involves listening to heart sounds at specific anatomical locations through a stethoscope.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
Normal Heart Sounds
S1 (First Heart Sound)-
S1 is made by the closure of the mitral and tricuspid valves (atrioventricular valves), marking the beginning of systole.
S2 (Second Heart Sound)-
S2 is made by the closure of the aortic and pulmonic valves (semilunar valves), marking the end of the systole.
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01:23Assessment of blood pressure in brachial artery(two-step method)
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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...
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