dc.description.abstract |
Atrial fibrillation (AF) is the most common and prevalent cardiac arrhythmia that leads to
cardiovascular mortality, blood clots, stroke, heart failure, other heart-related complications, and
death. Manual screening of AF from an electrocardiogram (ECG) record is time-consuming and
labor-intensive and leads to misdiagnosis due to medical professional skill gaps and sight problems.
There is also a high possibility that small changes in the ECG signal may be left undetected by the
human eye due to a weak heart signal. Therefore, automatic early-stage detection of AF is crucial
to addressing the health problem. Machine learning models have been formulated to detect AF
automatically, but they need more performance analysis to implement. In this work, we analyze the
performance of deep learning algorithms like convolutional neural networks (CNN) and long shortterm memory (LSTM) to detect AF at an early stage from an ECG signal. To analyze the two deep
learning algorithms for AF detection from an ECG signal, the thesis is organized into three main
stages. ECG data collection and reshaping were done in stage one. In the second stage, ECG is
preprocessed (ECG normalization and denoising using Butterworth low pass filter, median filter,
and notch filter), and an AF detection model is created using deep learning algorithms (CNN and
LSTM) and tested using accuracy performance metrics. The experimental results of the proposed
AF detection method showed that the CNN algorithm had better performance with 98% accuracy
using balanced ECG data. However, the LSTM algorithm performs poorly, with only 77% accuracy
when compared to the CNN algorithm. As a result, CNN's algorithm can help medical professionals
detect or diagnose diseases.
Keywords: AF, CNN, ECG, Deep Learning, LSTM |
en_US |