The traditional perception of atrial fibrillation (AF) as having random and disorganized electrical activity has begun to fade over recent years. Studies involving intra-cardiac mapping have shown evidence of an underlying spatial and temporal organization in the atria during AF. In this study, we used a modified QRS-T cancellation method for multi-lead ECGs and examined vectorcardiograms synthesized from twenty 12-lead ECGs recorded during AF. As a preliminary study we also analyzed ECG recordings taken during an ablation procedure of a typical atrial flutter patient where mechanisms and activation sequences were well known. Of the twenty synthesized vectorcardiograms of AF, five showed a consistent cyclical vector sequence. The other recordings often showed segments of repeated sequences lasting two or three f-wave cycles.
|Original language||English (US)|
|Number of pages||4|
|Journal||Computers in Cardiology|
|State||Published - Dec 1 2002|
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine