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Related Concept Videos

Guidelines For Measuring Vital Signs01:19

Guidelines For Measuring Vital Signs

2.4K
Following these guidelines can help nurses accurately measure vital signs, assess changes in patient conditions, and provide timely treatment when necessary. Adhering closely to the guidelines ensures the accuracy and reliability of the results.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
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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...
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Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

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Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
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Sleep Apnea01:21

Sleep Apnea

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Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
320
Pulse Oximetry01:24

Pulse Oximetry

1.1K
Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
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Related Experiment Video

Updated: Nov 25, 2025

Multi-Modal Home Sleep Monitoring in Older Adults
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Multi-Modal Home Sleep Monitoring in Older Adults

Published on: January 26, 2019

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Camera-Based Vital Signs Monitoring During Sleep - A Proof of Concept Study.

Mark van Gastel, Sander Stuijk, Sebastiaan Overeem

    IEEE Journal of Biomedical and Health Informatics
    |December 18, 2020
    PubMed
    Summary

    Contactless video monitoring shows promise for diagnosing sleep apnea. This remote photoplethysmography system accurately measures vital signs, offering a convenient alternative to traditional polysomnography (PSG).

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    Area of Science:

    • Biomedical Engineering
    • Sleep Medicine
    • Medical Imaging

    Background:

    • Polysomnography (PSG) is the gold standard for sleep disorder diagnosis but is invasive and inconvenient.
    • There is a growing need for unobtrusive methods to detect sleep disorders like sleep apnea.
    • Remote photoplethysmography (rPPG) offers contactless monitoring of physiological parameters.

    Purpose of the Study:

    • To validate a contactless video-based monitoring system for diagnosing sleep apnea.
    • To assess the accuracy of rPPG in measuring pulse rate, respiration, and blood oxygen saturation.
    • To evaluate the potential of camera-based monitoring as a diagnostic tool for sleep disorders.

    Main Methods:

    • Utilized a dataset of 46.5 hours of video recordings from eight patients with suspected obstructive sleep apnea.
    • Collected full polysomnography (PSG) data and metadata for comparison.
    • Employed remote photoplethysmography (rPPG) to capture hemodynamic information non-invasively.

    Main Results:

    • The camera system achieved 92% accuracy for pulse rate and 91% accuracy for respiratory rate detection.
    • Estimated blood oxygen saturation values were within 4% of finger-oximeter measurements 89% of the time.
    • Demonstrated high accuracy in measuring key physiological parameters relevant to sleep apnea diagnosis.

    Conclusions:

    • A contactless camera system using rPPG shows significant potential for diagnosing sleep apnea.
    • This technology offers a convenient and non-invasive alternative to traditional PSG.
    • The findings support the broader application of camera-based monitoring for sleep disorder diagnostics.