Table III.
Mean volumes of interest of calibration subjects, for the different research sites after calibration
| Subjects and site | Code | Intra‐cranium | Total brain | Cerebellum | Lateral ventricles | Third ventricle | Gray and white matter (cerebrum) | |
|---|---|---|---|---|---|---|---|---|
| Subjects c1–c6 | ||||||||
| Utrecht, reference | U0 | 1,426 (146) | 1,279 (142) | 143.5 (19.5) | 10.17 (6.4) | 0.449 (0.22) | 656 (51) | 464 (83) |
| London, Maudsley | L | 1,428 (143) | 1,276 (127) | 145.4 (18.5) | 10.66 (6.3) | 0.537 (0.18) | 656 (43) | 462 (70) |
| Heidelberg | H | 1,263 (120) | 149.1 (19.5) | 11.90 (6.4) | 0.197 (0.16)b | 653 (47) | 447 (65) | |
| Jena | J | 1,257 (125) | 147.7 (17.6) | 10.32 (6.0) | 0.491 (0.13) | 647 (47) | 448 (69) | |
| Subjects c1–c5a | ||||||||
| Repeated 1 | U1 | 1,468 (143) | 1,312 (128) | 152.3 (19.3) | 10.96 (7.55) | 0.447 (0.173) | 665 (29) | 478 (84) |
| Repeated 2 | U2 | 1,470 (142) | 1,313 (122) | 151.0 (17.5) | 11.43 (6.97) | 0.465 (0.202) | 665 (21) | 482 (89) |
| Subjects c1–c4a | ||||||||
| Utrecht, repeated 1 | U1 | 1,319 (147) | 151.8 (22.2) | 10.42 (8.6) | 0.497 (0.151) | 665 (33) | 486 (94) | |
| Helsinki | F | 1,329 (138) | 153.3 (18.9) | 12.70 (8.4) | 0.531 (0.195) | 669 (34) | 493 (85) | |
Mean volumes (standard deviation) given as cc units.
a
Because not all subjects were scanned for U1, U2, F, mean volumes of subsets are calculated for comparison of these sites.
b
P < 0.05.