Table 1.
MIT-BIH arrhythmia database information (AAMI-approved data only)
| Heartbeat type | Anna | Total # | |
|---|---|---|---|
| Normal rhythm | NOR | N | 74,068 |
| Left bundle branch block | LBBB | L | 8066 |
| Right bundle branch block | RBBB | R | 7246 |
| Atrial premature contraction | APC | A | 2513 |
| Premature ventricular contraction | PVC | V | 6897 |
| Aberrated atrial premature beat | AP | a | 150 |
| Ventricular flutter wave | VF | ! | 472 |
| Fusion of ventricular and normal beat | VFN | F | 802 |
| Non-conducted P-wave (blocked APC) | BAP | x | 193 |
| Nodal (junctional) escape beat | NE | j | 229 |
| Ventricular escape beat | VE | E | 106 |
| Nodal (junctional) escape beat | NP | J | 83 |
| Atrial escape beat | AE | e | 16 |
| Unclassified beat | UN | Q | 17 |
| Total | 100,858 |
aAnnotation that is used for each arrhythmia in the database