Table 1. Measurement reproducibility of each erosion parameter.
| Mean (SD) | Median (IQR) | ICCs | RMS%CV (%) | LSC%CV (%) | LSCSD | |
|---|---|---|---|---|---|---|
| Er.V (mm3) | 2.09 (1.91) | 1.69 (0.54–2.68) | 1.00 | 3.97 | 10.99 | 0.21 |
| Er.D (mm) | 1.41 (0.67) | 1.44 (0.79–1.74) | 0.99 | 4.28 | 11.85 | 0.17 |
| Er.D-2 (mm) | 1.33 (0.52) | 1.54 (0.83–1.74) | 0.99 | 4.65 | 12.87 | 0.14 |
| Er.W (mm) | 1.71 (0.61) | 1.58 (1.27–2.10) | 0.98 | 3.66 | 10.15 | 0.18 |
| Er.L (mm) | 1.43 (0.41) | 1.27 (1.11–1.68) | 0.98 | 3.60 | 9.98 | 0.13 |
| Er.BMD (mg/cm3) | 308.1 (89.1) | 277.4 (227.7–377.4) | 1.00 | 1.91 | 5.30 | 14.7 |
Three scans and measurements were repeated for the reproducibility analysis. Values are calculated for precision error and displayed as mean and standard deviation (SD), median and interquartile range (IQR), intraclass correlation coefficient (ICC), root mean square percentage coefficient of variance (RMS%CV), least significant change with percentage (LSC%CV), and absolute least significant change (LSCSD).
Er.V, erosion volume; Er.D, erosion depth in the axial view; Er.D-2, erosion depth in the perpendicular (coronal or sagittal) view; Er.W, erosion width in the axial view; Er.L, erosion length in the coronal or sagittal view; Er.BMD, peripheral bone mineral density surrounding erosion.