Prediction of LVEF using BiLSTM and Swarm Decomposition-based 24-h HRV Components

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, we investigated the effectiveness of using hourly Bi-Directional Long Short-Term Memory (BiLSTM) classifiers to predict left ventricle ejection fraction (LVEF) groups of CAD patients using their heart rate variability and Swarm Decomposition components. The 24-hour segmentation of patients' HRV data was performed using Cosinor Analysis. The novel Swarm Decomposition algorithm was then applied on the per-hour HRV data to extract the corresponding oscillatory components (HRV-OCs). The OCs represent the four bands in an HRV data, namely the ultra-low frequency (ULF), very-low frequency (VLF), low frequency (LF), and high frequency (HF). The training and classification process followed a leave-one-out scheme and was done for each per-hour HRV-OC. The highest prediction accuracy of LVEF was observed when using the VLF and HF components of HRV at an early morning hour (03-00-04:00 - average accuracy: 75.6%) and an evening hour (18:00-19:00 - average accuracy: 72.7%), respectively. In addition, the classifier achieved high sensitivity levels in predicting the borderline group (up to 76.7%), which is usually ambiguous and hard to diagnose in clinical practice.

Original languageBritish English
Title of host publicationProceedings - 2021 14th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2021
EditorsQingli Li, Lipo Wang, Yan Wang, Wenwu Li
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781665400039
DOIs
StatePublished - 2021
Event14th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2021 - Shanghai, China
Duration: 23 Oct 202125 Oct 2021

Publication series

NameProceedings - 2021 14th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2021

Conference

Conference14th International Congress on Image and Signal Processing, BioMedical Engineering and Informatics, CISP-BMEI 2021
Country/TerritoryChina
CityShanghai
Period23/10/2125/10/21

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