Table 4.
Intrarater reliability of measurements with CT and MRI
| Variable | CT (95% CI) | p value | MRI (95% CI) | p value |
| Width | 0.921 (0.809-0.987) | < 0.01 | 0.901 (0.807-0.989) | < 0.01 |
| Depth | 0.964 (0.895-0.995) | < 0.01 | 0.965 (0.898-0.994) | < 0.01 |
| Bigliani | 0.895 (0.731-1.000) | < 0.01 | 0.951 (0.882-0.999) | < 0.01 |
| Best-fit circle width | 0.981 (0.952-0.996) | < 0.01 | 0.964 (0.890-0.994) | < 0.01 |
| AP distances | 0.990 (0.973-0.997) | < 0.01 | 0.982 (0.961-0.994) | < 0.01 |
| Surface area | 0.979 (0.929-0.996) | < 0.01 | 0.985 (0.940-0.999) | < 0.01 |
| Gerber X ratio | 0.900 (0.743-9.83) | < 0.01 | 0.854 (0.631-0.998) | < 0.01 |
The correlation of nominal scaled measurements was compared using the chi-square test, ordinal scaled measurements were compared using the Spearman rank correlation coefficient, and interval scaled measurements were compared using the Pearson correlation coefficient.