Table 1.
Characteristics of the training, validation, and test cohorts
| Parameter | Training and validation cohort (n = 15,635 patients, n = 25,529 DICOM) |
Test cohort (n = 111 studies) |
|---|---|---|
| Clinical data | ||
| Age, years, mean (IQR) | 70.7 (60–83) | 77.4 (69–90) |
| Gender, male, % | 48 | 51 |
| Race, % | ||
| White | 51 | 53 |
| Black | 31 | 27 |
| Other | 18 | 20 |
| Height, cm, mean (IQR) | 170 (163–178) | 170 (163–178) |
| Weight, kg, mean (IQR) | 79 (67–93) | 81 (69–97) |
| Systolic blood pressure, mm Hg | 130 ± 23 | 126 ± 25 |
| Diastolic blood pressure, mm Hg | 72 ± 15 | 68 ± 12 |
| Echocardiographic data, cm | ||
| IVSd | 1.01 | 1.04 |
| PWd | 1.00 | 1.04 |
| LVIDd | 5.06 | 5.04 |
| EF (Biplane method of disks), % | 52.22 | 39.6 |
| Wall motion abnormality, n (%) | ||
| Inferior | 5,705 (22) | 48 (43) |
| Inferolateral | 4,681 (18) | 46 (41) |
| Anterolateral | 3,352 (13) | 43 (39) |
| Anterior | 4,495 (18) | 46 (41) |
| Anteroseptal | 2,508 (10) | 34 (31) |
| Inferoseptal | 4,221 (17) | 42 (38) |
| Apical | 5,745 (23) | 52 (47) |
| Any RWMA | 10,722 (42) | 66 (59) |
A subset of measurements is available for the test cohort. EF, Left ventricular ejection fraction; IQR, interquartile range; IVSd, interventricular septal thickness; LVIDd, left ventricular end-diastolic diameter; PWd, posterior wall thickness.