Table 4.
Clinical parameters in second observer subset. Differences for clinical parameters in the second observer subset (n = 24) for second observer manual delineation versus manual reference delineation and for automatic segmentation versus manual reference delineation.
| Automatic segmentation versus manual reference | Second observer versus manual reference | |||||
|---|---|---|---|---|---|---|
| Absolute difference | Relative difference | P value | Absolute difference | Relative difference | P value | |
| EDV | −9 ± 10 mL | −5 ± 5% | <0.01 | 10 ± 4 mL | 6 ± 2% | <0.01 |
| ESV | 3 ± 8 mL | 4 ± 12% | 0.1 | 5 ± 5 mL | 6 ± 6% | <0.01 |
| EF | −3 ± 3% | −6 ± 6% | <0.01 | 0 ± 2% | −1 ± 4% | 0.44 |
| LVM | 2 ± 16 g | 3 ± 13% | 0.55 | −7 ± 9 g | −7 ± 8% | <0.01 |
| SV | −12 ± 8 mL | −10 ± 6% | <0.01 | 5 ± 6 mL | 5 ± 5% | <0.01 |
| CO | −0.7 ± 0.4 L/min | −10 ± 6% | <0.01 | 0.3 ± 0.4 L/min | 5 ± 5% | <0.01 |
Absolute and relative difference expressed as mean ± SD. EDV = end-diastolic volume, ESV = end-systolic volume, EF = ejection fraction, and LVM = left ventricular mass.