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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.
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Updated: Jun 8, 2025

Semi-automated Optical Heartbeat Analysis of Small Hearts

Semi-automated Optical Heartbeat Analysis of Small Hearts

Published on: September 16, 2009

Radar-based contactless heart beat detection with a modified Pan-Tompkins algorithm.

Hoang Thi Yen¹, Vuong Tri Tiep¹, Van-Phuc Hoang¹

¹Le Quy Don Technical University, Hanoi, Vietnam.

Biomedical Physics & Engineering Express

|November 6, 2024

Summary

This summary is machine-generated.

This study shows radar can accurately measure heart rate non-contact, matching electrocardiography (ECG) results. This non-contact vital sign monitoring offers a promising alternative to traditional methods.

Keywords:

CW radar G. Sun H.T. Yen heart beat modified Pan-Tompkins non-contact

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Last Updated: Jun 8, 2025

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Area of Science:

Biomedical Engineering
Signal Processing
Wearable Technology

Background:

Non-contact vital sign monitoring using radar technology is gaining traction.
Challenges remain in achieving high accuracy for contactless measurements.
Radar offers potential benefits over traditional contact-based sensors.

Purpose of the Study:

To develop and validate a radar-based system for accurate non-contact heart rate measurement.
To compare the performance of the radar system against a gold standard contact-based method.
To assess the feasibility of radar for future healthcare applications.

Main Methods:

A two-stage approach involving data segmentation and signal channel selection.
Application of a modified Pan-Tompkins algorithm to process raw radar signals.
Experimental validation with twelve human participants.

Main Results:

High correlation (98.74%) between radar-derived and electrocardiography (ECG) heart rates.
Narrow 95% limits of agreement (2.4 beats per minute) between radar and ECG.
Demonstrated strong agreement for heart rate measurement.

Conclusions:

The developed radar method achieves high accuracy in non-contact heart rate monitoring.
Radar technology shows potential to supplement or replace contact sensors in healthcare.
This research supports the advancement of non-contact vital sign sensing.