Inter- and intraobserver correlations.
| Measure | Repeated Measurements, ICC (95% CI) | Interobserver, ICC (95% CI) | ||
| 3-Dimensional length | Junior | 0.993 ( 0.988–0.996) | Junior/fellow | 0.980 |
| Fellow | 0.983 (0.971–0.990) | Fellow/senior | 0.972 | |
| Senior | 0.954 (0.919–0.975) | Senior/junior | 0.974 | |
| Average | 0.989 (0.978–0.995) | |||
| Traditional | Junior | 0.997 (0.987–0.999) | Junior/fellow | 0.988 |
| Fellow | 0.991 (0.984–0.995) | Fellow/senior | 0.988 | |
| Senior | 0.999 (0.988–0.999) | Senior/junior | 0.993 | |
| Average | 0.995 (0.989–0.998) | |||