胎儿生长参数对照表
提供胎儿各孕周双顶径、头围、腹围、股骨长等生物学参数参考值，辅助评估胎儿生长发育。
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胎儿生物学参数参考值表（单位：mm）
数据基于《胎儿生物学参数超声参考值专家共识》整理
| 孕周 | 双顶径(BPD) | 头围(HC) | 腹围(AC) | 股骨长(FL) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 偏低 | 标准 | 偏高 | 偏低 | 标准 | 偏高 | 偏低 | 标准 | 偏高 | 偏低 | 标准 | 偏高 | |
| 10 | 10.0 | 11.8 | 14.1 | 39.9 | 45.9 | 52.7 | 30.9 | 36.0 | 42.0 | 1.6 | 2.2 | 2.9 |
| 11 | 12.9 | 15.2 | 17.9 | 50.6 | 57.8 | 66.0 | 39.2 | 45.4 | 52.5 | 2.9 | 3.8 | 5.0 |
| 12 | 16.1 | 18.9 | 22.1 | 62.2 | 70.6 | 80.2 | 48.4 | 55.7 | 64.1 | 4.7 | 6.1 | 7.8 |
| 13 | 19.4 | 22.6 | 26.4 | 74.3 | 83.9 | 94.7 | 58.3 | 66.8 | 76.5 | 7.0 | 8.9 | 11.3 |
| 14 | 22.8 | 26.4 | 30.6 | 86.6 | 97.3 | 109.3 | 68.8 | 78.4 | 89.4 | 9.8 | 12.2 | 15.3 |
| 15 | 26.1 | 30.1 | 34.7 | 98.9 | 110.5 | 123.5 | 79.7 | 90.4 | 102.5 | 12.7 | 15.7 | 19.3 |
| 16 | 29.3 | 33.6 | 38.5 | 110.9 | 123.3 | 137.1 | 90.8 | 102.5 | 115.6 | 15.7 | 19.1 | 23.3 |
| 17 | 32.4 | 36.9 | 42.1 | 122.6 | 135.6 | 150.0 | 101.8 | 114.5 | 128.6 | 18.7 | 22.4 | 26.9 |
| 18 | 35.3 | 40.0 | 45.4 | 133.9 | 147.5 | 162.3 | 112.9 | 126.3 | 141.4 | 21.4 | 25.4 | 30.1 |
| 19 | 38.1 | 43.1 | 48.6 | 145.1 | 159.0 | 174.3 | 123.8 | 138.0 | 153.9 | 24.1 | 28.2 | 33.1 |
| 20 | 41.0 | 46.1 | 51.8 | 156.4 | 170.7 | 186.2 | 134.6 | 149.6 | 166.3 | 26.7 | 31.0 | 36.0 |
| 21 | 44.0 | 49.2 | 55.1 | 167.8 | 182.4 | 198.1 | 145.3 | 161.1 | 178.6 | 29.4 | 33.8 | 38.8 |
| 22 | 47.0 | 52.3 | 58.4 | 179.3 | 194.0 | 210.0 | 155.9 | 172.4 | 190.6 | 32.1 | 36.5 | 41.5 |
| 23 | 49.9 | 55.5 | 61.6 | 190.7 | 205.7 | 221.8 | 166.2 | 183.4 | 202.5 | 34.7 | 39.1 | 44.2 |
| 24 | 52.9 | 58.6 | 64.9 | 201.9 | 217.1 | 233.5 | 176.3 | 194.3 | 214.1 | 37.2 | 41.7 | 46.8 |
| 25 | 55.9 | 61.7 | 68.1 | 212.9 | 228.3 | 244.9 | 186.1 | 204.9 | 225.6 | 39.6 | 44.2 | 49.4 |
| 26 | 58.8 | 64.7 | 71.3 | 223.6 | 239.2 | 256.0 | 195.7 | 215.4 | 237.0 | 42.0 | 46.6 | 51.8 |
| 27 | 61.6 | 67.7 | 74.3 | 233.8 | 249.7 | 266.7 | 205.2 | 225.8 | 248.4 | 44.2 | 49.0 | 54.2 |
| 28 | 64.4 | 70.6 | 77.3 | 243.6 | 259.8 | 277.1 | 214.5 | 236.1 | 259.9 | 46.3 | 51.2 | 56.6 |
| 29 | 67.0 | 73.3 | 80.2 | 252.8 | 269.3 | 287.0 | 223.9 | 246.7 | 271.7 | 48.4 | 53.4 | 58.9 |
| 30 | 69.5 | 76.0 | 83.0 | 261.3 | 278.3 | 296.5 | 233.4 | 257.3 | 283.7 | 50.4 | 55.5 | 61.1 |
| 31 | 71.9 | 78.5 | 85.6 | 269.2 | 286.7 | 305.4 | 242.8 | 268.0 | 295.9 | 52.3 | 57.5 | 63.4 |
| 32 | 74.1 | 80.8 | 88.1 | 276.4 | 294.5 | 313.8 | 252.0 | 278.7 | 308.2 | 54.1 | 59.5 | 65.5 |
| 33 | 76.2 | 83.0 | 90.4 | 282.9 | 301.7 | 321.7 | 260.9 | 289.1 | 320.4 | 55.8 | 61.4 | 67.6 |
| 34 | 78.0 | 85.0 | 92.6 | 288.8 | 308.3 | 329.0 | 269.5 | 299.3 | 332.3 | 57.5 | 63.2 | 69.6 |
| 35 | 79.7 | 86.8 | 94.5 | 294.0 | 314.2 | 335.8 | 277.6 | 309.0 | 343.9 | 59.0 | 65.0 | 71.5 |
| 36 | 81.2 | 88.5 | 96.3 | 298.5 | 319.5 | 342.0 | 285.2 | 318.3 | 355.1 | 60.6 | 66.7 | 73.4 |
| 37 | 82.6 | 89.9 | 97.9 | 302.3 | 324.1 | 347.5 | 292.4 | 327.2 | 366.0 | 62.0 | 68.3 | 75.1 |
| 38 | 83.7 | 91.1 | 99.2 | 305.2 | 327.8 | 352.1 | 299.4 | 335.9 | 376.8 | 63.3 | 69.7 | 76.8 |
| 39 | 84.6 | 92.1 | 100.3 | 307.3 | 330.7 | 355.9 | 306.2 | 344.5 | 387.7 | 64.5 | 71.1 | 78.3 |
| 40 | 85.3 | 93.0 | 101.3 | 308.3 | 332.6 | 358.8 | 312.9 | 353.3 | 398.9 | 65.6 | 72.4 | 79.9 |
