The magnetocardiogram

Biophysics Reviews, Journal Year: 2024, Volume and Issue: 5(2)

Published: May 29, 2024

The magnetic field produced by the heart's electrical activity is called magnetocardiogram (MCG). first 20 years of MCG research established most concepts, instrumentation, and computational algorithms in field. Additional insights into fundamental mechanisms biomagnetism were gained studying isolated hearts or even pieces cardiac tissue. Much effort has gone calculating using computer models, including solving inverse problem deducing bioelectric sources from biomagnetic measurements. Recently, magnetocardiographic focused on clinical applications, driven part new technologies to measure weak fields.

Language: Английский

AI-enabled diagnosis and localization of myocardial ischemia and coronary artery stenosis from magnetocardiographic recordings

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 19, 2025

Early diagnosis and localization of myocardial ischemia (MS) coronary artery stenosis (CAS) play a crucial role in the effective prevention management ischemic heart disease (IHD). Magnetocardiography (MCG) has emerged as promising approach for non-invasive, non-contact, high-sensitivity assessment cardiac dysfunction. This study presents multi-center, AI-enabled from MCG data. To this end, we collected large-scale dataset consisting 2,158 recordings eight clinical centers. We then proposed multiscale vision transformer-based network extracting spatio-temporal information multichannel recordings. Anatomical prior knowledge irrigated left ventricular regions was incorporated by carefully designed graph convolutional (GCN)-based feature fusion module. The achieved an accuracy 84.7%, sensitivity 83.8%, specificity 85.6% diagnosing IHD, average 78.4% five MS regions, 65.3% three arteries. Subsequent validation on independent 268 four centers demonstrated 82.3%, 81.3% 77.3% 65.6% can be used fast accurate tool, boosting integration examination into routine.

Language: Английский

An advanced vision of magnetocardiography as an unrivalled method for a more comprehensive non-invasive clinical electrophysiological assessment

American Heart Journal Plus Cardiology Research and Practice, Journal Year: 2025, Volume and Issue: 52, P. 100514 - 100514

Published: Feb. 23, 2025

Language: Английский