Table 1.
Inter-reader agreement.
| κ/inter-reader variability (%) | Test-retest variability | |||
|---|---|---|---|---|
| Reference | Expert-experienced (κ/%) | Experienced-novice (κ/%) | Expert-novice (κ/%) | Expert (%) |
| RAW FUSION | ||||
| CBL | 0.95/2.6 | 0.79/5.2* | 0.77/5.6* | 2.9 |
| WM | 0.98/1.0 | 0.91/2.4** | 0.93/2.1** | 0.9 |
| BST | 0.99/0.9 | 0.94/2.0** | 0.96/1.8** | 0.9 |
| GLM | 0.95/1.2 | 0.88/2.1** | 0.89/2.3** | 0.9 |
| MEAN ± SD | 0.97 ± 0.02/1.4 ± 0.8 | 0.88 ± 0.06/2.9 ± 1.5** | 0.89 ± 0.08/3.0 ± 1.8** | 1.4 ± 1.0 |
| BRAIN NORMALIZATION | ||||
| CBL | 1.00/0.5 | 0.99/0.6 | 1.00/0.5 | |
| WM | 1.00/0.2 | 0.99/0.4 | 0.99/0.4 | |
| BST | 1.00/0.2 | 0.99/0.4 | 0.99/0.5 | |
| GLM | 1.00/0.2 | 0.99/0.5 | 0.99/0.4 | |
| MEAN ± SD | 1.00 ± 0.00/0.2 ± 0.1 | 0.99 ± 0.00/0.5 ± 0.1 | 0.99 ± 0.00/0.5 ± 0.1 | |
Inter-reader agreement expressed by Fleiss κ and inter-reader variability (%) before and after brain normalization (BN) for all different reference regions. For the raw fusion the test-retest variability of the expert is given.
*
p < 0.01;
**
p < 0.001 for interreader-variability (%) vs. expert test-retest variability (%), permutation test.