Application of stacked convolutional and long short-term memory network for accurate identification of CAD ECG

Jen Hong Tan1, Yuki Hagiwara1, Winnie Pang1

  • 1Department of Electronics and Computer Engineering, Ngee Ann Polytechnic, Singapore.

Insights

This study introduces a deep learning model combining Long Short-Term Memory (LSTM) and Convolutional Neural Networks (CNN) for accurate automated diagnosis of Coronary Artery Disease (CAD) using electrocardiogram (ECG) signals, achieving 99.85% accuracy.

Area of Science:

  • Cardiology
  • Artificial Intelligence
  • Biomedical Engineering

Background:

  • Coronary Artery Disease (CAD) is a leading global cause of heart disease, often asymptomatic in early stages.
  • Electrocardiogram (ECG) is a common diagnostic tool for CAD but suffers from low sensitivity due to challenges in interpreting low-amplitude signals.
  • Manual interpretation of ECGs can be error-prone, necessitating automated diagnostic solutions.

Purpose of the Study:

  • To develop and implement a deep learning model for automated and objective interpretation of ECG signals for CAD diagnosis.
  • To enhance the diagnostic accuracy and reliability of CAD detection from ECG data.

Main Methods:

  • Implementation of a hybrid deep learning architecture integrating Long Short-Term Memory (LSTM) networks and Convolutional Neural Networks (CNN).
  • Training and validation of the model on ECG signals to identify patterns indicative of CAD.
  • Utilizing a blindfold strategy to evaluate the model's diagnostic performance.

Main Results:

  • The proposed LSTM-CNN model achieved a high diagnostic accuracy of 99.85% in detecting CAD from ECG signals.
  • The model demonstrates significant potential for accurate and automated CAD diagnosis.

Conclusions:

  • The developed deep learning model offers a promising approach for accurate automated CAD diagnosis using ECGs.
  • The prototype is ready for further validation with large-scale clinical databases before potential deployment.

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