Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Assessing Blood pressure using a doppler ultrasound

Assessing Blood pressure using a doppler ultrasound

To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:

Equipments Used To Measure Blood Pressure

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...

Doppler Effect - II

Doppler Effect - II

The Doppler effect has several practical, real-world applications. For instance, meteorologists use Doppler radars to interpret weather events based on the Doppler effect. Typically, a transmitter emits radio waves at a specific frequency toward the sky from a weather station. The radio waves bounce off the clouds and precipitation and travel back to the weather station. The radio frequency of the waves reflected back to the station appears to decrease if the clouds or precipitation are moving...

Pulse Oximetry

Pulse Oximetry

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...

Pulse rhythm

Pulse rhythm

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Pediatric Borderline Leprosy with Prominent Radial Cutaneous Nerve Enlargement.

The American journal of tropical medicine and hygiene·2026

Same author

Nuclear Gradients from Auxiliary-Field Quantum Monte Carlo and Their Applications in ML-Driven Geometry Optimization and Transition State Search.

Journal of chemical theory and computation·2026

Same author

From Summer Facilitation to Winter Avoidance: Seasonal Shifts in Livestock-Wild Ungulate Temporal Coexistence.

Ecology and evolution·2026

Same author

Fokker-Planck Equation Governing the Distribution of Walkers in Auxiliary-Field Quantum Monte Carlo.

Physical review letters·2026

Same author

Parameter-free optimization algorithm effective and precise solution of the optimal power flow problem.

Scientific reports·2026

Same author

End-of-life challenges in neuro-oncological patient care: A survey from the Junge Neuroonkologische Arbeitsgemeinschaft.

Neuro-oncology practice·2026

Search research articles

Related Experiment Video

Updated: Jul 19, 2025

Design and Analysis for Fall Detection System Simplification

Design and Analysis for Fall Detection System Simplification

Published on: April 6, 2020

Effective fall detection and post-fall breath rate tracking using a low-cost CW Doppler radar sensor.

Ritesh Chandra Tewari¹, Sandeep Sharma², Aurobinda Routray²

¹Advanced Technology Development Centre, Indian Institute of Technology, Kharagpur, West Bengal, India.

Computers in Biology and Medicine

|August 12, 2023

Summary

This study introduces a low-cost Doppler radar fall detection system that reduces false alarms and adds post-fall health monitoring. The accurate and efficient system achieves 93.24% fall detection accuracy.

Keywords:

3.18 GHz CW radar sensor Breath rate tracking Human fall detection

More Related Videos

Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible

Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible

Published on: May 13, 2025

Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights

Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights

Published on: October 25, 2024

Related Experiment Videos

Last Updated: Jul 19, 2025

Design and Analysis for Fall Detection System Simplification

Design and Analysis for Fall Detection System Simplification

Published on: April 6, 2020

Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible

Harmonic Radar Tags for Insect Tracking: Lightweight, Low-cost, and Accessible

Published on: May 13, 2025

Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights

Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights

Published on: October 25, 2024

Area of Science:

Biomedical Engineering
Signal Processing
Machine Learning

Background:

Existing Doppler radar fall detection systems suffer from false alarms and lack post-fall health tracking.
These limitations reduce accuracy and overall suitability for real-world applications.

Purpose of the Study:

To develop a cost-effective and robust fall detection system with integrated post-fall health tracking.
To address the limitations of current systems by improving accuracy and reducing false alarms.

Main Methods:

Utilized a 3.18 GHz continuous-wave Doppler radar sensor for data acquisition.
Developed a four-stage hierarchical algorithm trained at each stage for optimized classification.
Employed a modular system architecture with low-power equipment and traditional machine learning algorithms to minimize computational cost and power consumption.

Main Results:

Achieved a fall detection accuracy of 93.24%.
Demonstrated a breath rate measurement error of 2.26%.
Results are competitive with current state-of-the-art methods.

Conclusions:

The proposed system effectively overcomes false alarms and enables post-fall health tracking.
The system offers a cost-effective, accurate, and robust solution for fall detection.