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相关概念视频

Special considerations while measuring blood pressure01:28

Special considerations while measuring blood pressure

824
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.
824
Assessing Blood pressure using a doppler ultrasound01:19

Assessing Blood pressure using a doppler ultrasound

1.6K
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:
1.6K
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

48
Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...
48
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

1.5K
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...
1.5K
Pre-Procedural Guidelines for Assessing Blood Pressure01:10

Pre-Procedural Guidelines for Assessing Blood Pressure

628
Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the...
628
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

2.4K
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...
2.4K

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相关实验视频

Updated: Sep 14, 2025

Asthma Detection Research Based on Voice Signal Processing and Machine Learning
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Asthma Detection Research Based on Voice Signal Processing and Machine Learning

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使用声学分析和机器学习对随机语音样本进行高血压查:可行性研究

Behrad TaghiBeyglou1,2,3, Jaycee Kaufman3, Yan Fossat3,4

  • 1Institute of Biomedical Engineering, University of Toronto, Toronto, ON, Canada.

Digital biomarkers
|July 24, 2025
PubMed
概括

这项研究探讨了使用语音分析进行高血压查,为传统血压手套提供了一个潜在的可访问的替代方案. 该方法显示出有希望的准确性,特别是对于女性来说,在识别患有心压和心压升高的个体方面.

关键词:
数字生物标志物数字生物标志物在高血压的高血压.机器学习是机器学习.演讲 演讲 演讲语音生物标志物 语音生物标志物

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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody

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Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
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Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
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Semi-Automated Analysis of Peak Amplitude and Latency for Auditory Brainstem Response Waveforms Using R
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科学领域:

  • 心脏病学 心脏病学
  • 生物医学工程 生物医学工程
  • 语音处理 语音处理

背景情况:

  • 高血压是心血管疾病的主要危险因素.
  • 早期检测和治疗对于管理高血压至关重要.
  • 基于手的血压测量虽然准确,但在偏远地区面临着可访问性挑战.

研究的目的:

  • 调查使用公开言论用于高血压查的可行性.
  • 评估语音分析作为传统血压监测的可访问替代方案.

主要方法:

  • 收集了来自573名参与者的演讲录音.
  • 使用机器学习模型提取声学特征 (时间,光谱,非线性).
  • 通过交叉验证 (leave-one-subject-out) 评估模型性能.

主要成果:

  • 在宽松的高血压标准下 (SBP ≥135 或 DBP ≥85) 达到61% (男性) 和70% (女性) 的平衡精度 (BACC).
  • 根据更严格的ESH指南 (SBP ≥140 或 DBP ≥90) 达到71%的BACC (男性) 和78% (女性).

结论:

  • 露面语音分析显示了对高血压查的潜力.
  • 这种声学方法可以提高对高血压检测的可访问性.