Name
Title | ||
|---|---|---|
Automated Detection of Paroxysmal Atrial Fibrillation Using an Information-Based Similarity Approach. |
Abstract | ||
|---|---|---|
Atrial fibrillation (AF) is an abnormal rhythm of the heart, which can increase heart-related complications. Paroxysmal AF episodes occur intermittently with varying duration. Human-based diagnosis of paroxysmal AF with a longer-term electrocardiogram recording is time-consuming. Here we present a fully automated ensemble model for AF episode detection based on RR-interval time series, applying a novel approach of information-based similarity analysis and ensemble scheme. By mapping RR-interval time series to binary symbolic sequences and comparing the rank-frequency patterns of m-bit words, the dissimilarity between AF and normal sinus rhythms (NSR) were quantified. To achieve high detection specificity and sensitivity, and low variance, a weighted variation of bagging with multiple AF and NSR templates was applied. By performing dissimilarity comparisons between unknown RR-interval time series and multiple templates, paroxysmal AF episodes were detected. Based on our results, optimal AF detection parameters are symbolic word length m = 9 and observation window n = 150, achieving 97.04% sensitivity, 97.96% specificity, and 97.78% overall accuracy. Sensitivity, specificity, and overall accuracy vary little despite changes in m and n parameters. This study provides quantitative information to enhance the categorization of AF and normal cardiac rhythms. |
Year | DOI | Venue |
|---|---|---|
2017 | 10.3390/e19120677 | ENTROPY |
Keywords | Field | DocType |
paroxysmal atrial fibrillation,RR-interval time series,symbolic sequence,information-based similarity index,ensemble model | Atrial fibrillation,Similarity analysis,Pattern recognition,Artificial intelligence,Paroxysmal atrial fibrillation,Statistics,Rhythm,Mathematics,Paroxysmal AF,Cardiac rhythms | Journal |
Volume | Issue | ISSN |
19 | 12 | 1099-4300 |
Citations | PageRank | References |
4 | 0.43 | 6 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xing-Ran Cui | 1 | 10 | 2.64 |
| Emily Chang | 2 | 10 | 1.33 |
| Wen-Hung Yang | 3 | 4 | 0.43 |
| Bernard C. Jiang | 4 | 79 | 11.80 |
| Albert C.-C. Yang | 5 | 21 | 2.94 |
| Chung-Kang Peng | 6 | 29 | 5.02 |