Sensors (Feb 2023)

DDM-HSA: Dual Deterministic Model-Based Heart Sound Analysis for Daily Life Monitoring

  • Miran Lee,
  • Qun Wei,
  • Soomin Lee,
  • Heejoon Park

DOI
https://doi.org/10.3390/s23052423
Journal volume & issue
Vol. 23, no. 5
p. 2423

Abstract

Read online

A sudden cardiac event in patients with heart disease can lead to a heart attack in extreme cases. Therefore, prompt interventions for the particular heart situation and periodic monitoring are critical. This study focuses on a heart sound analysis method that can be monitored daily using multimodal signals acquired with wearable devices. The dual deterministic model-based heart sound analysis is designed in a parallel structure that uses two bio-signals (PCG and PPG signals) related to the heartbeat, enabling more accurate heart sound identification. The experimental results show promising performance of the proposed Model III (DDM-HSA with window and envelope filter), which had the highest performance, and S1 and S2 showed average accuracy (unit: %) of 95.39 (±2.14) and 92.55 (±3.74), respectively. The findings of this study are anticipated to provide improved technology to detect heart sounds and analyze cardiac activities using only bio-signals that can be measured using wearable devices in a mobile environment.

Keywords