Table 2.
Statistical analysis for the segmentation of the pulmonary main comparing manual observer and CAD measurements. Pearson correlation coefficients, absolute differences between measurements, and p-values of the paired t-tests are shown. Data were normally distributed.
| Pulmonary main | p-value | ||
|---|---|---|---|
| Correlation | Difference (mm) | ||
| Intraobserver 1 | 0.93 | 1.06±0.88 | 0.6 |
| Intraobserver 2 | 0.87 | 1.56±1.47 | 0.02 |
| Interobserver | 0.92 | 1.25±0.86 | 0.8 |
| Observer 1-CAD | 0.92 | 1.13±1.05 | 0.06 |
| Observer 2-CAD | 0.91 | 1.26±0.91 | 0.9 |
| Inter-CAD user | 0.99 | 0.19±0.39 | 0.2 |