Detecting atrial fibrillation and atrial flutter in daily life using photoplethysmography data

Linda M. Eerikäinen (Corresponding author), Alberto G. Bonomi, Fons Schipper, Lukas R.C. Dekker, Helma M. de Morree, Rik Vullings, Ronald M. Aarts

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

Objective: Photoplethysmography (PPG) enables unobtrusive heart rate monitoring, which can be used in wrist-worn applications. Its potential for detecting atrial fibrillation (AF) has been recently presented. Besides AF, another cardiac arrhythmia increasing stroke risk and requiring treatment is atrial flutter (AFL). Currently, the knowledge about AFL detection with PPG is limited. The objective of our study was to develop a model that classifies AF, AFL, and sinus rhythm with or without premature beats from PPG and acceleration data measured at the wrist in daily life. Methods: A dataset of 40 patients was collected by measuring PPG and accelerometer data, as well as electrocardiogram as a reference, during 24-hour monitoring. The dataset was split into 75%-25% for training and testing a Random Forest (RF) model, which combines features from PPG, inter-pulse intervals (IPI), and accelerometer data, to classify AF, AFL, and other rhythms. The performance was compared to an AF detection algorithm combining traditional IPI features for determining the robustness of the accuracy in presence of AFL. Results: The RF model classified AF/AFL/other with sensitivity and specificity of 97.6/84.5/98.1% and 98.2/99.7/92.8%, respectively. The results with the IPI-based AF classifier showed that the majority of false detections were caused by AFL. Conclusion: The PPG signal contains information to classify AFL in the presence of AF, sinus rhythm, or sinus rhythm with premature contractions. Significance: PPG could indicate presence of AFL, not only AF.
Original languageEnglish
Article number8890854
Pages (from-to)1610-1618
Number of pages9
JournalIEEE Journal of Biomedical and Health Informatics
Volume24
Issue number6
Early online date12 Nov 2019
DOIs
Publication statusPublished - Jun 2020

Keywords

  • Accelerometer
  • Atrial Fibrillation (AF)
  • Atrial Flutter
  • Photoplethysmography
  • Random Forest

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