Intracranial (n = 184) and brain (n = 178) volumes (5th, 50th, and 95th percentiles) as a function of GA across a set MRIs of fetuses with clinically normal brains, grouped by 2-week intervals
| GA (Weeks) | Intracranial Volume | Brain Volume | ||||
|---|---|---|---|---|---|---|
| 5th | 50th | 95th | 5th | 50th | 95th | |
| 19.5–21.5 | 60.4 | 71.2 | 100.8 | 37.1 | 49.7 | 70.8 |
| 21.5–23.5 | 82.8 | 99.8 | 122.2 | 53.1 | 65.5 | 80.5 |
| 23.5–25.5 | 91.8 | 139.5 | 166.0 | 54.7 | 86.9 | 110.6 |
| 25.5–27.5 | 120.2 | 169.1 | 213.5 | 78.8 | 114.6 | 141.2 |
| 27.5–29.5 | 184.4 | 217.0 | 276.0 | 119.4 | 150.4 | 187.5 |
| 29.5–31.5 | 229.1 | 269.9 | 350.1 | 145.2 | 180.2 | 241.7 |
| 31.5–33.5 | 248.9 | 306.0 | 383.4 | 172.0 | 206.8 | 255.8 |
| 33.5–35.5 | 321.4 | 366.3 | 406.3 | 213.2 | 268.1 | 307.9 |