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Related Concept Videos

Pulse Oximetry01:24

Pulse Oximetry

1.4K
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...
1.4K
Pulse01:16

Pulse

2.2K
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
2.2K
Pulse01:05

Pulse

4.2K
The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls...
4.2K
NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences01:17

NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences

1.8K
A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
1.8K
Regulation of Pulse01:20

Regulation of Pulse

2.3K
Pulse regulation involves physiological mechanisms that ensure adequate blood flow throughout the body. The heartbeat, regulated by the autonomic nervous system, is influenced by hormonal balance, physical activity, and emotional state.
2.3K
Pulse rhythm01:30

Pulse rhythm

1.4K
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...
1.4K

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Author Spotlight: A Smartphone-Based Imaging Method for C. elegans Lawn Avoidance Assay
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[Research on Pulse Oximetry Method Based on Android Smartphone].

Yan Liu1, Shui Wu1, Cuifang Zhuang1

  • 1Department of Nephrology, Songjiang Branch of First People's Hospital, Shanghai Jiao Tong University, Shanghai, 201600.

Zhongguo Yi Liao Qi Xie Za Zhi = Chinese Journal of Medical Instrumentation
|June 5, 2018
PubMed
Summary
This summary is machine-generated.

A new pulse oximetry method using Android smartphones offers reliable blood oxygen saturation monitoring anywhere. This non-intrusive optical technique provides real-time, consistent results for clinical care.

Keywords:
oxygen saturationreflectivesmartphone

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Area of Science:

  • Biomedical Engineering
  • Medical Devices
  • Optical Sensing

Background:

  • Blood oxygen saturation is a critical clinical care index.
  • Current monitoring methods may lack portability or accessibility.
  • Need for convenient, real-time oxygen saturation assessment exists.

Purpose of the Study:

  • To develop and validate a novel pulse oximetry method utilizing Android smartphones.
  • To enable ubiquitous blood oxygen saturation monitoring.
  • To assess the reliability and consistency of the smartphone-based method.

Main Methods:

  • A non-intrusive reflective optical measuring principle was employed.
  • Image processing and analysis techniques were applied to sampled data.
  • Real-time calculation of blood oxygen saturation values was performed using smartphone capabilities.

Main Results:

  • The developed method demonstrated high reliability in measuring blood oxygen saturation.
  • The results showed strong consistency with established monitoring techniques.
  • The smartphone-based approach proved effective for anywhere monitoring.

Conclusions:

  • Smartphone-based pulse oximetry is a viable and reliable tool for blood oxygen saturation monitoring.
  • This non-intrusive method offers a convenient and accessible solution for clinical care.
  • The technology shows promise for widespread adoption in remote and diverse healthcare settings.