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Related Concept Videos

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...
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Pulse01:05

Pulse

4.1K
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...
4.1K
Special considerations while measuring pulse01:13

Special considerations while measuring pulse

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Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
975
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
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
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

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Carotid Arterial Pulse Waveform Measurements Using Fiber Bragg Grating Pulse Probe.

Srivani Padma, Sharath Umesh, Talabattula Srinivas

    IEEE Journal of Biomedical and Health Informatics
    |July 11, 2018
    PubMed
    Summary
    This summary is machine-generated.

    A new noninvasive fiber Bragg grating pulse probe (FBGPP) accurately captures carotid arterial pulse waveforms. This device enables real-time assessment of cardiovascular health by analyzing key parameters like heart rate and ejection time.

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    Area of Science:

    • Biomedical Engineering
    • Cardiovascular Physiology
    • Sensor Technology

    Background:

    • Arterial pulse analysis is crucial for cardiovascular health assessment.
    • Central aortic pressure is a superior predictor of cardiovascular status compared to peripheral pressure.
    • The carotid arterial pulse is the optimal indicator of central aortic pressure.

    Purpose of the Study:

    • To develop a novel noninvasive fiber Bragg grating (FBG) sensor probe for real-time carotid arterial pulse waveform (CAPW) acquisition.
    • To assess the feasibility and ease of use of the developed FBG pulse probe (FBGPP) at the carotid arterial site.
    • To analyze the acquired CAPW for evaluating vital cardiovascular parameters and their linearity.

    Main Methods:

    • Development of a noninvasive FBG pulse probe (FBGPP) utilizing an elastic rubber diaphragm and an FBG sensor.
    • The FBGPP is designed for easy positioning and access to the carotid arterial site.
    • Acquisition of beat-to-beat CAPW and subsequent pulse wave analysis to determine cardiovascular parameters.

    Main Results:

    • Successful development and demonstration of the FBGPP for real-time CAPW acquisition.
    • The probe allows for easy and noninvasive measurement of carotid pulse waveforms.
    • Analysis of CAPW revealed key cardiovascular parameters including heart rate, left ventricular ejection time, carotid augmentation index, and ejection duration index.
    • Exploration of linearity between these cardiovascular parameters in a sample of 55 individuals.

    Conclusions:

    • The novel FBG pulse probe (FBGPP) offers a reliable, noninvasive method for capturing carotid arterial pulse waveforms (CAPW).
    • The device facilitates the real-time evaluation of critical cardiovascular parameters, aiding in the assessment of cardiac health.
    • Further analysis demonstrated the linearity of these parameters, supporting the clinical utility of the FBGPP.