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相关概念视频

Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

1.4K
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:
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Pulse rhythm01:30

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...
814
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

986
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...
986
Assessment of blood pressure in brachial artery(one-step method)01:15

Assessment of blood pressure in brachial artery(one-step method)

611
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
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Assessment of blood pressure in brachial artery(two-step method)01:23

Assessment of blood pressure in brachial artery(two-step method)

726
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...
726
Electrocardiogram01:29

Electrocardiogram

2.4K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
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相关实验视频

Updated: Jul 12, 2025

Patient Directed Recording of a Bipolar Three-Lead Electrocardiogram using a Smartwatch with ECG Function
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无袖高血压检测使用集群支矢量机使用光电心电图和心电图.

Nuryani Nuryani1, Trio Pambudi Utomo1, Nanang Wiyono2

  • 1Department of Physics, University of Sebelas Maret Jl. Ir. Sutami 36A Kentingan Jebres Surakarta 57126, Indonesia.

Journal of biomedical physics & engineering
|October 23, 2023
PubMed
概括

这项研究开发了一个使用心电图 (ECG) 和光电图 (PPG) 信号的无袖高血压检测系统,使用基于Swarm的支持矢量机 (SSVM) 算法,实现96%的准确性. 这种非侵入性方法为早期高血压监测提供了一个有希望的方法.

关键词:
医疗信息学 医疗信息学摄影电解质量学 摄影电解质量学支持向量机器 支持向量机器

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Calculating Heart Rate Variability from ECG Data from Youth with Cerebral Palsy During Active Video Game Sessions
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Software for Analysis of Heart Rate and Blood Pressure Time-series Data from the Valsalva Maneuver
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Software for Analysis of Heart Rate and Blood Pressure Time-series Data from the Valsalva Maneuver
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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
  • 人工智能在医学中的应用

背景情况:

  • 高血压对健康构成重大风险,需要及早检测以预防严重并发症.
  • 及时识别高血压事件对于有效管理和改善患者结果至关重要.

研究的目的:

  • 为了研究一种新的,无袖的高血压检测策略.
  • 为了利用生物电信号,特别是心电图 (ECG) 和光心电图 (PPG),进行非侵入性血压监测.
  • 开发和优化基于Swarm的支持矢量机 (SSVM) 算法,以准确检测高血压.

主要方法:

  • 从MIMIC数据库中从正常和高血压参与者收集了ECG和PPG数据.
  • 提取了关键参数,包括脉冲到达时间 (PAT) 和PPG信号衍生品.
  • 采用了一个SSVM算法,优化了量子三角形潜力井粒子集群优化 (QDPSO),以分析提取的参数.

主要成果:

  • 拟议的SSVM战略在F1得分,准确性,敏感性和特异性方面实现了96%的绩效率.
  • 与其他测试方法相比,开发的系统表现出卓越的性能.
  • 该研究成功开发了一种功能性的无袖高血压监测系统.

结论:

  • 使用心电图和PPG参数的SSVM算法提供了一种可接受的高血压检测方法.
  • 整合ECG和PPG信号可以比单独使用PPG更好地检测高血压.
  • 这项研究证实了非侵入性生物电信号分析在高血压管理中的潜力.