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Published on: May 23, 2021
Shape-based matching of ECG recordings
Tanveer Syeda-Mahmood1, David Beymer, Fei Wang
1Healthcare Informatics Group, IBM Almaden Research Center, San Jose, CA 95120, USA.
Summary
This study introduces a novel method for retrieving electrocardiogram (ECG) recordings based on waveform shape similarity. This approach aids in diagnosing cardiovascular diseases by comparing ECG patterns.
Area of Science:
- Cardiology
- Biomedical Engineering
- Medical Informatics
Background:
- Electrocardiogram (ECG) interpretation is crucial for cardiovascular disease diagnosis.
- Current diagnosis relies heavily on visual examination of ECG waveforms.
- Digital and scanned ECGs present challenges for automated analysis.
Purpose of the Study:
- To develop a shape-based retrieval system for ECG recordings.
- To enable inference of disease similarity from ECG waveform shapes.
- To improve automated analysis of both digital and scanned ECGs.
Main Methods:
- Segmentation and extraction of ECG recording channels from images.
- Utilizing shape matching combined with dynamic time warping for perceptual shape similarity.
- Developing an overall shape similarity measure by combining channel-specific similarities.
Main Results:
- Demonstrated a method for shape-based matching of ECG recordings.
- Successfully applied the method to various cardiovascular diseases.
- Validated the effectiveness of the combined shape similarity measure.
Conclusions:
- The proposed method enables effective shape-based retrieval of ECG recordings.
- This technique can assist in inferring disease similarity from ECG patterns.
- The approach holds promise for enhancing cardiovascular disease diagnosis.
Related Concept Videos
01:29Electrocardiogram
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and the T...
01:25Correlation between ECG and Cardiac Cycle
The electrical signals recorded on an electrocardiogram (ECG) occur before the mechanical processes of contraction and relaxation during the cardiac cycle.
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...
A cardiac action potential originates in the SA node and spreads throughout the atria and the AV node in approximately 0.03 seconds. This results in the P wave in an ECG and triggers atrial contraction. The action potential is then briefly slowed at the AV node, allowing the atria to contract and fill the ventricles with blood before...