B超附录
超声评定胎儿孕龄与生长发育表
| 孕龄（周） |
双顶径cm |
肱骨长度cm |
腹围cm |
股骨长度cm |
| 12 |
2 |
|
5.6 |
0.8 |
| 13 |
2.3 |
|
6.9 |
1.1 |
| 14 |
2.7 |
|
8.1 |
1.5 |
| 15 |
3 |
|
9.3 |
1.8 |
| 16 |
3.3 |
|
10.5 |
2.1 |
| 17 |
3.7-3.9 |
2.15 |
12-12.5 |
2.1-2.3 |
| 18 |
4.0-4.3 |
2.41 |
13-13.5 |
2.4-2.7 |
| 19 |
4.4-4.6 |
2.67 |
14-14.5 |
2.8-3.0 |
| 20 |
4.7-4.9 |
2.91 |
15-16 |
3.1-3.3 |
| 21 |
5.0-5.3 |
3.15 |
16.5-17 |
3.4-3.6 |
| 22 |
5.4-5.6 |
3.38 |
17.5-18 |
3.7-3.8 |
| 23 |
5.7-5.9 |
3.61 |
18.5-19 |
3.9-4.1 |
| 24 |
6.0-6.2 |
3.82 |
19.5-20.5 |
4.2-4.4 |
| 25 |
6.3-6.5 |
4.03 |
21-21.5 |
4.5-4.6 |
| 26 |
6.6-6.8 |
4.23 |
22-22.5 |
4.7-4.8 |
| 27 |
6.9-7.1 |
4.42 |
23-23.5 |
4.9-5.0 |
| 28 |
7.2-7.3 |
4.6 |
24-24.5 |
5.1-5.2 |
| 29 |
7.4-7.5 |
4.78 |
25-25.5 |
5.3-5.4 |
| 30 |
7.6-7.8 |
4.94 |
26-26.5 |
5.5-5.6 |
| 31 |
7.9-8.0 |
5.1 |
27-27.5 |
5.7-5.8 |
| 32 |
8.1-8.2 |
5.25 |
28-28.5 |
5.9 |
| 33 |
8.3-8.4 |
5.39 |
29-29.5 |
6.0-6.1 |
| 34 |
8.5-8.6 |
5.53 |
30-30.5 |
6.2-6.3 |
| 35 |
8.7 |
5.65 |
31-31.5 |
6.4-6.6 |
| 36 |
8.8-8.9 |
5.77 |
32-32.5 |
6.7 |
| 37 |
9.0-9.1 |
5.88 |
33-33.5 |
6.8-6.9 |
| 38 |
9.2 |
5.98 |
34-34.5 |
7.0-7.2 |
| 39 |
9.3 |
6.08 |
35-35.5 |
7.3-7.4 |
| 40 |
9.3-9.4 |
6.16 |
36-36.5 |
7.5 |
B超单图解
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