Table 3. Comparison of the radiographic values between automatic measurement and manual measurement in the whole cohort.
| Parameters | TK | LL | PI | PT | SVA | TPA | Cobb |
|---|---|---|---|---|---|---|---|
| Mean difference | 3.9 | –5.2 | 3.6 | –0.2 | –2.1 | –1.1 | 2.1 |
| Mean absolute error | 5.3 | 6.8 | 5.0 | 1.6 | 4.5 | 2.1 | 2.7 |
| SD absolute error | 3.8 | 5.4 | 4.5 | 2.0 | 6.5 | 2.6 | 2.0 |
| Coefficient of variation | 19.0 | 15.2 | 11.2 | 13.2 | 25.4 | 21.0 | 18.7 |
| Max absolute error | 21.4 | 34.5 | 32.6 | 14.3 | 54.4 | 16.4 | 15.5 |
| Percentage difference (%) | 14.7 | 12.3 | 8.0 | 1.7 | 11.8 | 10.9 | 6.7 |
TK, thoracic kyphosis; LL, lumbar lordosis; SS, sacral slope; PT, pelvic tilt; PI, pelvic incidence; SVA, sagittal vertical axis; TPA, T1 pelvic angle.