Table 4.
Agreement between manual and automated segmentations. Agreement was analysed in the entire study group (n = 300) as well as in subgroups according to field strength, aortic valve replacement and repaired Tetralogy of Fallot
| Parameter | Mean Difference (SD of the Diff.) | ICC (95% CI) | CoV (%) | |
|---|---|---|---|---|
| All | LV Mass | 2.4 (9.3) | 0.95 (0.94–0.97) | 14.6 |
| (n = 300) | LV EDV | 5.0 (7.9) | 0.98 (0.94–0.99) | 8.5 |
| LV ESV | 4.4 (11.1) | 0.96 (0.94–0.97) | 25.0 | |
| LV SV | 0.3 (7.3) | 0.91 (0.89–0.93) | 15.1 | |
| LV EF | −2.5 (5.9) | 0.95 (0.92–0.97) | 10.6 | |
| RV EDV | 7.4 (12.0) | 0.92 (0.81–0.96) | 14.0 | |
| RV ESV | −1.6 (9.8) | 0.92 (0.89–0.93) | 24.0 | |
| RV SV | 9.0 (10.6) | 0.73 (0.26–0.87) | 23.5 | |
| RV EF | 5.8 (9.6) | 0.72 (0.47–0.83) | 17.8 | |
| 1.5 T | LV Mass | 4.0 (7.2) | 0.96 (0.91–0.98) | 11.7 |
| (n = 132) | LV EDV | 4.4 (8.4) | 0.98 (0.96–0.99) | 8.8 |
| LV ESV | 2.9 (6.1) | 0.99 (0.98–1.00) | 12.2 | |
| LV SV | 1.1 (6.4) | 0.95 (0.92–0.96) | 13.7 | |
| LV EF | −1.5 (4.9) | 0.97 (0.96–0.98) | 9.3 | |
| RV EDV | 10.6 (9.6) | 0.90 (0.33–0.97) | 11.7 | |
| RV ESV | 2.1 (8.0) | 0.94 (0.91–0.96) | 20.5 | |
| RV SV | 8.5 (8.8) | 0.72 (0.11–0.88) | 20.6 | |
| RV EF | 3.9 (8.8) | 0.77 (0.62–0.86) | 16.5 | |
| 3 T | LV Mass | 0.1 (9.7) | 0.97 (0.95–0.98) | 13.2 |
| (n = 90) | LV EDV | 5.5 (7.3) | 0.98 (0.91–0.99) | 7.8 |
| LV ESV | 6.9 (17.7) | 0.88 (0.79–0.92) | 40.5 | |
| LV SV | −1.4 (8.5) | 0.84 (0.75–0.89) | 17.1 | |
| LV EF | −3.8 (6.9) | 0.92 (0.83–0.96) | 12.3 | |
| RV EDV | 5.8 (12.2) | 0.89 (0.79–0.94) | 15.0 | |
| RV ESV | −0.7 (7.9) | 0.94 (0.92–0.96) | 20.7 | |
| RV SV | 6.2 (11.0) | 0.64 (0.35–0.79) | 25.3 | |
| RV EF | 4.1 (8.4) | 0.83 (0.68–0.90) | 15.3 | |
| Aortic Valve replacement | LV Mass | 1.3 (11.5) | 0.89 (0.76–0.94) | 16.7 |
| (n = 31) | LV EDV | 5.0 (7.7) | 0.97 (0.91–0.99) | 8.7 |
| LV ESV | 5.5 (5.6) | 0.97 (0.76–0.99) | 14.8 | |
| LV SV | −0.4 (7.6) | 0.93 (0.85–0.96) | 15.2 | |
| LV EF | −4.4 (6.4) | 0.92 (0.73–0.97) | 10.8 | |
| RV EDV | 6.0 (13.9) | 0.90 (0.78–0.95) | 16.6 | |
| RV ESV | −6.9 (10.6) | 0.86 (0.60–0.94) | 28.9 | |
| RV SV | 12.8 (15.0) | 0.54 (0.00–0.79) | 31.6 | |
| RV EF | 10.3 (13.7) | 0.54 (0.00–0.79) | 23.7 | |
| Tetralogy of Fallot | LV Mass | 2.9 (11.3) | 0.75 (0.55–0.86) | 23.0 |
| (n = 47) | LV EDV | 5.6 (7.8) | 0.91 (0.69–0.96) | 9.4 |
| LV ESV | 3.1 (6.4) | 0.83 (0.66–0.91) | 18.7 | |
| LV SV | 1.9 (6.5) | 0.87 (0.76–0.93) | 13.1 | |
| LV EF | −1.5 (5.3) | 0.73 (0.52–0.85) | 8.9 | |
| RV EDV | 2.6 (14.3) | 0.94 (0.90–0.97) | 13.5 | |
| RV ESV | − 10.1 (10.5) | 0.82 (0.25–0.93) | 20.2 | |
| RV SV | 13.0 (9.4) | 0.81 (0.00–0.94) | 17.4 | |
| RV EF | 11.3 (7.5) | 0.41 (0.00–0.73) | 14.8 |
Biventricular volumes and LV mass were indexed to body surface area. T: Tesla. SD standard deviation, ICC intraclass correlation coefficient, CoV coefficient of variation, LV left ventricular, RV right ventricular, EDV/ESV end-diastolic/systolic volume, SV stroke volume, EF ejection fraction