Abstract
Linear and non-linear indexes for the characterisation of the dynamics in atrial signals (AS) and local atrial period (LAP) series are assessed in different atrial fibrillation (AF) episodes as defined by Wells. Parameters include the linear index obtained from the cross-correlation function (CCF) between ASs and the non-linear synchronisation (S) index based on the mutual corrected conditional entropy (MCCE). Regularity (R) was computed on single-lead AS. In addition, the level of predictability (LP) and the regularity of LAP series were computed. It was found that the level of synchronisation between ASs decreased passing from type-I to type-II AF when using linear (CCF: 0.90±0.10 against 0.44±0.18; p
| Original language | English |
|---|---|
| Pages (from-to) | 249-254 |
| Number of pages | 6 |
| Journal | Medical and Biological Engineering and Computing |
| Volume | 39 |
| Issue number | 2 |
| Publication status | Published - 2001 |
Keywords
- Atrial signal
- Linear predictability
- Non-linear dynamics
- Regularity
- Synchronisation
ASJC Scopus subject areas
- Biomedical Engineering
- Health Informatics
- Health Information Management
- Computer Science Applications
- Computational Theory and Mathematics