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Open access Oct 2026

The autonomic-ventricular coherence index: a novel single-lead ECG method with acquisition-dependent discrimination

Background Autonomic regulation and the heart's electrical activity are both central to normal cardiac function, yet there is currently no direct way to capture the interaction between them from a standard ECG. This paper introduces the Autonomic–Ventricular Coherence Index (AVCI), a single-lead ECG method that measure...

Jayasree R, C. G · 0 citations
Open access Sep 2026

A Comparative Analysis of Signal Quality and Morphological Fidelity in ECG Smartwatches

This study provides a direct and objective comparison of ECG signal quality and morphological feature preservation across four leading commercial smartwatches: the Apple Watch Series 9, Samsung Galaxy Watch 6, Fitbit Sense 2, and Withings ScanWatch, using a controlled dataset. The Philips TC30 is used as the reference...

S. Muhammed, N. A. Omran, S. Sowelam · 0 citations
Open access Jan 2026

Comparative assessment of AD8232- and MAX30003-based ECG acquisition paths using synthetic ECG signals

Abstract Purpose This study presents a comparative technical evaluation of two implemented electrocardiogram (ECG) acquisition paths based on AD8232 and MAX30003 under controlled laboratory conditions. The analog front-end paths were designed in accordance with the reference circuits and design recommendations specifie...

Fryderyk Gajdzik, M. Kimbar, P. Krowicki · 0 citations
Preprint Aug 2026

CardioFusion-AI: Robust ECG--PPG Fusion for Multimodal Physiological Monitoring Under Signal Degradation

Wearable electrocardiogram (ECG) and photoplethysmogram (PPG) sensors are complementary but individually fragile: motion artifact, poor contact, and sensor dropout can degrade one or both signals. Fusion strategies that assume both modalities are equally trustworthy can become less reliable than a single clean modality...

Navaneetha Krishnan Kamalakannan, J. Kamalakannan · 1 citation

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