Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer02:57

Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer

Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

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...
Pressure Gauges01:20

Pressure Gauges

Most pressure gauges, like those on scuba tanks, are calibrated to read zero at atmospheric pressure. Readings from such gauges are called the gauge pressure, which is the pressure relative to atmospheric pressure. When the pressure inside the tank exceeds atmospheric pressure, the gauge reports a positive value. Some gauges are designed to measure negative pressure. For example, many physics experiments must take place in a vacuum chamber, a rigid chamber from which some of the air is pumped...
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

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 stethoscope.
Measurements of Strain01:27

Measurements of Strain

Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain gauge...
Measurement of Fluid Pressure01:16

Measurement of Fluid Pressure

Fluid pressure is commonly measured using devices called manometers, which rely on liquid columns to indicate pressure differences. The height of a liquid column in a manometer reflects the pressure exerted by the fluid, providing a simple yet effective means of measurement. Different types of manometers serve specific purposes based on their configurations and the type of fluids involved.
A basic form of manometer is the piezometer, a vertical tube open at the top and filled with the same...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Psychometric Testing of the Veterans Health Administration Resident Competency Assessment Scale for New Graduate Registered Nurse Competency.

Journal of nursing care quality·2026
Same author

Automatic detection of e-cigarette screens using object detection and vision language models.

Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco·2026
Same author

Transcriptional immune programs underlying inadequate response to tumor necrosis factor inhibitors in ankylosing spondylitis.

Clinical immunology (Orlando, Fla.)·2026
Same author

Impact of COVID-19 on Movement Disorders Patients in the Outpatient Setting.

Cureus·2026
Same author

Diagnostic value of stand-alone videos after inconclusive inpatient EEG-video monitoring.

Epilepsia·2026
Same author

Preoperative CT-Based Habitat Radiomics Classifiers Predict Recurrence in Non-Small Cell Lung Cancer.

medRxiv : the preprint server for health sciences·2026

相关实验视频

Updated: Jul 25, 2026

Generation of a Three-dimensional Full Thickness Skin Equivalent and Automated Wounding
08:35

Generation of a Three-dimensional Full Thickness Skin Equivalent and Automated Wounding

Published on: February 26, 2015

18.7K

使用深度摄像机自动测量压力的尺寸.

Chih-Yun Pai1,2, Hunter Morera3,4, Sudeep Sarkar5,6

  • 1VA Student Volunteer Research Assistant, Research Service, James A. Haley Veterans' Hospital and Clinics, Tampa, Florida, US.

Journal of wound care
|March 6, 2025
PubMed
概括

这项研究开发了一种用于压力 (PU) 监测系统 (PrUMS) 的自动伤口细分方法. 该系统提供准确的,非接触式伤口测量,尽管深度准确性需要进一步改进.

关键词:
自动伤口测量自动化伤口测量自动伤口细分自动伤口细分深度学习是一种深度学习.非接触伤口测量方法压力损伤的压力损伤压力的压力.三维视觉视觉是一个三维视觉.伤口的伤口是伤口.伤口护理 伤口护理伤口愈合 伤口愈合

更多相关视频

Author Spotlight: Studying Host-Microbe Interactions in Wound Biofilm Formation
07:16

Author Spotlight: Studying Host-Microbe Interactions in Wound Biofilm Formation

Published on: June 16, 2023

1.7K
Digital Planimetry for Assessing Wound Closure Kinetics in a Mouse Model
07:56

Digital Planimetry for Assessing Wound Closure Kinetics in a Mouse Model

Published on: January 10, 2025

373

相关实验视频

Last Updated: Jul 25, 2026

Generation of a Three-dimensional Full Thickness Skin Equivalent and Automated Wounding
08:35

Generation of a Three-dimensional Full Thickness Skin Equivalent and Automated Wounding

Published on: February 26, 2015

18.7K
Author Spotlight: Studying Host-Microbe Interactions in Wound Biofilm Formation
07:16

Author Spotlight: Studying Host-Microbe Interactions in Wound Biofilm Formation

Published on: June 16, 2023

1.7K
Digital Planimetry for Assessing Wound Closure Kinetics in a Mouse Model
07:56

Digital Planimetry for Assessing Wound Closure Kinetics in a Mouse Model

Published on: January 10, 2025

373

科学领域:

  • 生物医学工程 生物医学工程
  • 医疗成像医学成像
  • 医疗保健中的人工智能

背景情况:

  • 精确的压力 (PU) 监测对于有效的伤口护理至关重要.
  • 当前的方法往往涉及手动测量,这可能是耗时和主观的.
  • 自动化,非接触式测量系统可以提高监测的准确性和效率.

研究的目的:

  • 为压力监测系统 (PrUMS) 开发一种自动伤口细分方法.
  • 使用深度摄像头提供自动化,非接触式伤口测量.
  • 通过结合多个卷积神经网络分类器来提高PrUMS的准确性.

主要方法:

  • 开发了一种使用多个卷积神经网络分类器的自动伤口细分方法.
  • 将该方法集成到带有深度摄像头的压力监测系统 (PrUMS) 中.
  • 将PrUMS的测量与伤口护理护士的标准化手动测量进行了比较.

主要成果:

  • 与地面真相相比,自动细分方法显示测量误差为9.27mm (长度),5.89mm (宽度) 和5.79mm (深度).
  • 半自动细分产生较小的错误:长度为4.72mm,宽度为4.34mm,深度为5.71mm.
  • 在细分方法和地面真相之间,没有发现长度和宽度测量的显著差异,但深度测量有显著差异 (p<0.001).

结论:

  • 新型PrUMS设备提供了客观的,非接触性伤口测量,适合临床实践.
  • 使用普通摄像头图像可以提高分类器的性能.
  • 虽然长度和宽度测量在统计上与手动测量相似 (p>0.05),但由于深度摄像机的限制,深度测量显示了统计差异 (p=0.04).