# Automatic diagnosis of the 12-lead ECG using a deep neural network

## TL;DR

This paper demonstrates that a deep neural network trained on over 2 million ECG exams can outperform cardiology residents in diagnosing six types of abnormalities in 12-lead ECGs, showing promise for clinical application.

## Contribution

It introduces a DNN model trained on a large, real-world dataset that effectively diagnoses multiple ECG abnormalities, advancing automated ECG analysis.

## Key findings

- DNN achieved F1 scores above 80% for abnormality detection
- Specificity of the DNN was over 99%
- Model generalizes well from single-lead to 12-lead ECGs

## Abstract

The role of automatic electrocardiogram (ECG) analysis in clinical practice is limited by the accuracy of existing models. Deep Neural Networks (DNNs) are models composed of stacked transformations that learn tasks by examples. This technology has recently achieved striking success in a variety of task and there are great expectations on how it might improve clinical practice. Here we present a DNN model trained in a dataset with more than 2 million labeled exams analyzed by the Telehealth Network of Minas Gerais and collected under the scope of the CODE (Clinical Outcomes in Digital Electrocardiology) study. The DNN outperform cardiology resident medical doctors in recognizing 6 types of abnormalities in 12-lead ECG recordings, with F1 scores above 80% and specificity over 99%. These results indicate ECG analysis based on DNNs, previously studied in a single-lead setup, generalizes well to 12-lead exams, taking the technology closer to the standard clinical practice.