Table 4.
Electrocardiogram classification performance for the dataset from the Telehealth Center of the National Taiwan University Hospital.
| Diagnosis | Characteristics of dataset and algorithm | |||||||
|
|
|
Type of beats, n | Algorithm performance measure, % | |||||
|
|
|
True positive | False negative | False positive | True negative | Accuracy | Sensitivity | Specificity |
| Sinus | 47,036 | 85,575 | 1824 | 52,804 | 53.32 | 35.47 | 96.66 | |
| Disease a |
|
|
|
|
|
|
|
|
|
|
All | 47,339 | 720 | 94,842 | 44,338 | 48.96 | 98.50 | 31.86 |
|
|
AF | 17,935 | 1413 | 20,357 | 147,534 | 88.37 | 92.70 | 87.88 |
|
|
AFL | 4391 | 2667 | 12,530 | 167,651 | 91.88 | 62.21 | 93.05 |
|
|
Pacemaker rhythm | 4105 | 502 | 117,876 | 64,756 | 36.78 | 89.10 | 35.46 |
|
|
APC | 8813 | 1134 | 48,838 | 128,454 | 73.31 | 88.60 | 72.45 |
|
|
VPC | 317 | 308 | 4595 | 182,019 | 97.38 | 50.72 | 97.54 |
|
|
TWI | 2012 | 745 | 22,623 | 161,859 | 87.52 | 72.98 | 87.74 |
|
|
ST-segment down | 471 | 593 | 10,007 | 176,168 | 94.34 | 44.27 | 94.63 |
|
|
AVB1 | 3731 | 2232 | 15,771 | 165,505 | 90.39 | 62.57 | 91.30 |
|
|
JEB | 30 | 194 | 4698 | 182,317 | 97.39 | 13.39 | 97.49 |
|
|
QT>450 | 1 | 4 | 10,630 | 176,604 | 94.32 | 20.00 | 94.32 |
| Noise | 6984 | 1626 | 33,634 | 144,995 | 81.17 | 81.12 | 81.17 | |
aAtrial fibrillation (AF), atrial flutter (AFL), atrial premature contraction (APC), ventricular premature contraction (VPC), T-wave inversion (TWI), first-degree atrioventricular block (AVB1), junctional escape beat (JEB), QT-segment length is more than 450 milliseconds (QT>450).