Table 1.
Mean and standard deviation of dice coefficients (DC).
| All (n = 50) |
< 5 ml (n = 26) |
5–15 ml (n = 14) |
> 15 ml (n = 10) |
|
|---|---|---|---|---|
| Ham-Syd | 0.67 (0.12) | 0.63 (0.15) | 0.69 (0.06) | 0.74 (0.08) |
| Ham-Zur | 0.66 (0.13) | 0.61 (0.16) | 0.68 (0.06) | 0.74 (0.07) |
| Zur-Syd | 0.67 (0.12) | 0.63 (0.14) | 0.69 (0.07) | 0.72 (0.09) |
| Raters | 0.66 (0.12) | 0.62 (0.14) | 0.69 (0.06) | 0.73 (0.08) |
| Raters-LGA SPM 8 | 0.60 (0.15) | 0.53 (0.16) | 0.65 (0.08) | 0.70 (0.09) |
| Raters-LGA SPM 12 | 0.53* (0.16) | 0.45* (0.18) | 0.59* (0.09) | 0.63 (0.10) |
| Raters-LPA | 0.57* (0.16) | 0.49* (0.17) | 0.63 (0.10) | 0.68 (0.11) |
Means and standard deviations (in brackets) of DC between lesion masks generated by manual or automated segmentation. The numbers marked with an asterisk indicate DC which are significantly (p = 0.05) different from the DC of the manual raters ("Raters"). In columns 3–5 the same analysis was performed but restricted to groups with different total lesion volumes.