Using explainable AI to investigate electrocardiogram changes during healthy aging -- from expert features to raw signals
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Abstract (arXiv)
Cardiovascular diseases remain the leading global cause of mortality. Age is an important covariate whose effect is most easily investigated in a healthy cohort to properly distinguish the former from disease-related changes. Traditionally, most of such insights have been drawn from the analysis of electrocardiogram (ECG) feature changes in individuals as they age. However, these features, while informative, may potentially obscure underlying data relationships. In this paper we present the following contributions: (1) We employ a deep-learning model and a tree-based model to analyze ECG data from a robust dataset of healthy individuals across varying ages in both raw signals and ECG feature format. (2) We use explainable AI methods to identify the most discriminative ECG features across age groups.(3) Our analysis with tree-based classifiers reveals age-related declines in inferred breathing rates and identifies notably high SDANN values as indicative of elderly individuals, distinguishing them from younger adults. (4) Furthermore, the deep-learning model underscores the pivotal role of the P-wave in age predictions across all age groups, suggesting potential changes in the distribution of different P-wave types with age. These findings shed new light on age-related ECG changes, offering insights that transcend traditional feature-based approaches.
Key facts. Cited by 7 papers in the map (data through 14 Oct 2026). Builds on 10 of its 41 references that are in the map. First posted on arXiv 11 Oct 2023.
Builds on
10 of 41 references.
References · 10
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Citing papers per year: 2024: 5; 2025: 1; 2026: 1.
7 papers.
- 2024CardioLab: Laboratory Values Estimation from Electrocardiogram Features - An Exploratory Studycited by 5
- 2024Estimation of Cardiac and Non-cardiac Diagnosis from Electrocardiogram Featurescited by 5
- 2024Abnormality Prediction and Forecasting of Laboratory Values from Electrocardiogram Signals Using Multimodal Deep Learningcited by 5
- 2024Explainable machine learning for neoplasms diagnosis via electrocardiograms: an externally validated studycited by 4
- 2024Electrocardiogram-based diagnosis of liver diseases: an externally validated and explainable machine learning approachcited by 2
- 2025Explainable and externally validated machine learning for neurocognitive diagnosis via electrocardiogramscited by 0
- 2026Explainable Diabetic Retinopathy Classification Using Vision Foundation Modelscited by 0
- 2026Explainable Diabetic Retinopathy Classification Using Vision Foundation Models28 Aug 2026
- 2025Explainable and externally validated machine learning for neurocognitive diagnosis via electrocardiograms7 Feb 2025
- 2024Explainable machine learning for neoplasms diagnosis via electrocardiograms: an externally validated study10 Dec 2024
- 2024Electrocardiogram-based diagnosis of liver diseases: an externally validated and explainable machine learning approach4 Dec 2024
- 2024Abnormality Prediction and Forecasting of Laboratory Values from Electrocardiogram Signals Using Multimodal Deep Learning22 Nov 2024
- 2024Estimation of Cardiac and Non-cardiac Diagnosis from Electrocardiogram Features30 Aug 2024
- 2024CardioLab: Laboratory Values Estimation from Electrocardiogram Features - An Exploratory Study26 Jul 2024