Analyzing artificial intelligence systems for the prediction of atrial fibrillation from sinus-rhythm ECGs including demographics and feature visualization

Abstract Atrial fibrillation (AF) is an abnormal heart rhythm, asymptomatic in many cases, that causes several health problems and mortality in population. This retrospective study evaluates the ability of different AI-based models to predict future episodes of AF from electrocardiograms (ECGs) reco...

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Main Authors: Pietro Melzi, Ruben Tolosana, Alberto Cecconi, Ancor Sanz-Garcia, Guillermo J. Ortega, Luis Jesus Jimenez-Borreguero, Ruben Vera-Rodriguez
Format: Article
Language:English
Published: Nature Portfolio 2021-11-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-02179-1
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author Pietro Melzi
Ruben Tolosana
Alberto Cecconi
Ancor Sanz-Garcia
Guillermo J. Ortega
Luis Jesus Jimenez-Borreguero
Ruben Vera-Rodriguez
author_facet Pietro Melzi
Ruben Tolosana
Alberto Cecconi
Ancor Sanz-Garcia
Guillermo J. Ortega
Luis Jesus Jimenez-Borreguero
Ruben Vera-Rodriguez
author_sort Pietro Melzi
collection DOAJ
description Abstract Atrial fibrillation (AF) is an abnormal heart rhythm, asymptomatic in many cases, that causes several health problems and mortality in population. This retrospective study evaluates the ability of different AI-based models to predict future episodes of AF from electrocardiograms (ECGs) recorded during normal sinus rhythm. Patients are divided into two classes according to AF occurrence or sinus rhythm permanence along their several ECGs registry. In the constrained scenario of balancing the age distributions between classes, our best AI model predicts future episodes of AF with area under the curve (AUC) 0.79 (0.72–0.86). Multiple scenarios and age-sex-specific groups of patients are considered, achieving best performance of prediction for males older than 70 years. These results point out the importance of considering different demographic groups in the analysis of AF prediction, showing considerable performance gaps among them. In addition to the demographic analysis, we apply feature visualization techniques to identify the most important portions of the ECG signals in the task of AF prediction, improving this way the interpretability and understanding of the AI models. These results and the simplicity of recording ECGs during check-ups add feasibility to clinical applications of AI-based models.
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spelling doaj.art-d3fe7ade268d446db2798bffbd1c13722022-12-21T20:28:47ZengNature PortfolioScientific Reports2045-23222021-11-0111111010.1038/s41598-021-02179-1Analyzing artificial intelligence systems for the prediction of atrial fibrillation from sinus-rhythm ECGs including demographics and feature visualizationPietro Melzi0Ruben Tolosana1Alberto Cecconi2Ancor Sanz-Garcia3Guillermo J. Ortega4Luis Jesus Jimenez-Borreguero5Ruben Vera-Rodriguez6Biometrics and Data Pattern Analytics Lab, Escuela Politecnica Superior, Universidad Autonoma de MadridBiometrics and Data Pattern Analytics Lab, Escuela Politecnica Superior, Universidad Autonoma de MadridInstituto de Investigacion Sanitaria del Hospital Universitario de La PrincesaInstituto de Investigacion Sanitaria del Hospital Universitario de La PrincesaScience and Technology Department, National University of QuilmesInstituto de Investigacion Sanitaria del Hospital Universitario de La PrincesaBiometrics and Data Pattern Analytics Lab, Escuela Politecnica Superior, Universidad Autonoma de MadridAbstract Atrial fibrillation (AF) is an abnormal heart rhythm, asymptomatic in many cases, that causes several health problems and mortality in population. This retrospective study evaluates the ability of different AI-based models to predict future episodes of AF from electrocardiograms (ECGs) recorded during normal sinus rhythm. Patients are divided into two classes according to AF occurrence or sinus rhythm permanence along their several ECGs registry. In the constrained scenario of balancing the age distributions between classes, our best AI model predicts future episodes of AF with area under the curve (AUC) 0.79 (0.72–0.86). Multiple scenarios and age-sex-specific groups of patients are considered, achieving best performance of prediction for males older than 70 years. These results point out the importance of considering different demographic groups in the analysis of AF prediction, showing considerable performance gaps among them. In addition to the demographic analysis, we apply feature visualization techniques to identify the most important portions of the ECG signals in the task of AF prediction, improving this way the interpretability and understanding of the AI models. These results and the simplicity of recording ECGs during check-ups add feasibility to clinical applications of AI-based models.https://doi.org/10.1038/s41598-021-02179-1
spellingShingle Pietro Melzi
Ruben Tolosana
Alberto Cecconi
Ancor Sanz-Garcia
Guillermo J. Ortega
Luis Jesus Jimenez-Borreguero
Ruben Vera-Rodriguez
Analyzing artificial intelligence systems for the prediction of atrial fibrillation from sinus-rhythm ECGs including demographics and feature visualization
Scientific Reports
title Analyzing artificial intelligence systems for the prediction of atrial fibrillation from sinus-rhythm ECGs including demographics and feature visualization
title_full Analyzing artificial intelligence systems for the prediction of atrial fibrillation from sinus-rhythm ECGs including demographics and feature visualization
title_fullStr Analyzing artificial intelligence systems for the prediction of atrial fibrillation from sinus-rhythm ECGs including demographics and feature visualization
title_full_unstemmed Analyzing artificial intelligence systems for the prediction of atrial fibrillation from sinus-rhythm ECGs including demographics and feature visualization
title_short Analyzing artificial intelligence systems for the prediction of atrial fibrillation from sinus-rhythm ECGs including demographics and feature visualization
title_sort analyzing artificial intelligence systems for the prediction of atrial fibrillation from sinus rhythm ecgs including demographics and feature visualization
url https://doi.org/10.1038/s41598-021-02179-1
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