孕周(周) | 胎儿 | 双顶径/mm | 头围/mm | 腹围/mm | 股骨/mm | 肱骨/mm | 最大羊水 深度 | 脐动脉S/D | PSV mom |
16 + 4 | FI | 34 | 124 | 102 | 20 | - | 48 | - | - |
F2 | 37 | 137 | 121 | 21 | - | 45 | - | - | |
20 + 1 | FI | 47 | 166 | 137 | 26 | - | 40 | - | - |
F2 | 47 | 169 | 152 | 30 |
| 48 | - | - | |
24系统 | FI | 57 | 200 | 181 | 36 | - | 57 | - | - |
F2 | 57 | 205 | 187 | 36 |
| 60 | - | - | |
26 | FI | 65 | 223 | 193 | 39 | - | 55 | - | 0.74 |
F2 | 63 | 229 | 201 | 40 |
| 61 | - | 1.76 | |
28 + 5 | FI | 71 | 249 | 215 | 44 | 40 | 52 | 2.93 | 0.51 |
F2 | 71 | 256 | 237 | 45 | 41 | 67 | 4.68 | 1.75 | |
30 + 3 | FI | 76 | 273 | 244 | 48 | 43 | 62 | 3.97 | 0.44 |
F2 | 75 | 274 | 262 | 50 | 45 | 67 | 2.51 | 1.30 |