Table 3.
Comparison between MRI weights, MRI manual weights and autopsy weights of the cerebrum for fetuses. Density for cerebrum used to compute the weight from the MR volume 1. 08 g/mL. The threshold values used to remove the CSF from the MR segmentation are also included.
| MaRIAS no. | Gestational age |
CSF threshold value | MRI volume [mL] | MRI weight [g] | MRI manual weight [g] | Autopsy weight [g] | |
|---|---|---|---|---|---|---|---|
| [weeks] | [days] | ||||||
| 121 | 39 | 0 | 700 | 361.74 | 390.67 | 390.40 | 388.00 |
| 149 | 34 | 2 | 700 | 267.79 | 289.22 | N/A | N/A |
| 196 | 32 | 2 | 800 | 160.66 | 173.52 | 172.59 | 181.00 |
| 210 | 38 | 6 | 600 | 354.74 | 383.12 | N/A | 391.00 |
| 214 | 37 | 2 | 550 | 298.07 | 321.92 | N/A | 328.00 |
| 230 | 41 | 6 | 450 | 370.73 | 400.39 | N/A | 401.00 |
| 246 | 32 | 6 | 530 | 208.06 | 224.70 | 225.54 | 223.70 |
| 282 | 30 | 5 | 500 | 146.96 | 158.72 | N/A | N/A |
| 299 | 44 | 0 | 300 | 408.43 | 441.11 | 438.00 | 447.00 |
| 330 | 35 | 6 | 800 | 264.72 | 285.90 | N/A | 292.00 |
| 339 | 36 | 2 | 800 | 339.31 | 366.45 | 365.05 | N/A |
| 343 | 34 | 1 | 350 | 247.69 | 267.50 | N/A | 275.00 |
| 379 | 38 | 5 | 290 | 357.13 | 385.70 | N/A | 386.13 |
| 384 | 39 | 4 | 300 | 366.63 | 395.96 | N/A | 389.80 |
| 388 | 38 | 0 | 390 | 439.41 | 474.56 | 469.56 | N/A |
| 391 | 33 | 0 | 550 | 213.39 | 230.46 | 231.59 | 226.00 |
| 396 | 29 | 0 | 700 | 113.70 | 122.80 | 122.22 | 128.00 |