相关实验视频
Updated: Jun 9, 2025
07:51
Video Movement Analysis Using Smartphones ViMAS: A Pilot Study
Published on: March 14, 2017
16.8K
智能手机上的振荡计血压测量使用振动计力估计
Colin Barry1,2, Yinan Xuan3,4, Ava Fascetti3,4
1Electrical and Computer Engineering, UC San Diego, La Jolla, CA, USA. c1barry@ucsd.edu.
Scientific reports
|November 1, 2024
概括
这项研究介绍了一款智能手机应用程序,用于使用手指和手机摄像头测量血压 (BP). 新的振动计力估计 (VFE) 方法准确地测量了施加的力,使得高血压查成为可能.
科学领域:
- 生物医学工程 生物医学工程
- 移动卫生技术 移动卫生技术
- 心血管监测 心血管监测
背景情况:
- 精确的血压 (BP) 监测对于高血压管理至关重要.
- 现有的血压测量设备可能是昂贵的,并且无法用于广泛的查.
- 智能手机集成为可访问的健康监测提供了一个潜在的解决方案.
研究的目的:
- 开发和验证基于智能手机的血压测量方法.
- 通过使用标准智能手机硬件引入一种新的力估计技术 (VFE).
- 评估一种低成本,易于使用的高血压查工具的可行性.
主要方法:
- 使用智能手机摄像头的振荡计方法进行光电脉冲扫描 (血液体积变化).
- 开发了使用手机的振动电机和IMU来测量施加力的振动力估计 (VFE).
- 进行了跨设备可靠性研究和概念验证BP测量研究 (N=24).
主要成果:
- 在不同的智能手机机型号中,VFE表现出类似的力估计性能.
- 智能手机测血压的平均绝对误差为9.21 mmHg (心缩) 和7.77 mmHg (腹缩),与FDA批准的手套相比.
- 在概念验证研究中观察到高可靠性和准确性.
结论:
- 基于智能手机的振荡计BP测量是可行的高精度.
- 在没有专门的硬件的情况下,VFE技术提供了一种可靠的力量测量方法.
- 这项技术有可能被广泛采用,作为一种低障碍高血压查工具.
相关概念视频
01:30Equipments Used To Measure Blood Pressure
836
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...
836
01:15Assessment of blood pressure in brachial artery(one-step method)
556
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:
556
01:23Assessment of blood pressure in brachial artery(two-step method)
658
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...
658
01:28Special considerations while measuring blood pressure
705
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.
705
01:17Measurement of Blood Pressure
881
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...
881
01:21Sites for measruring blood pressure
1.5K
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
The Brachial Artery: Primary Site for Blood Pressure Measurement
1.5K