B超单的三个神奇作用
各孕周相应B超数值对照表：
双顶径BPD——胎儿头部从左到右最长的部分。
头围HC——胎儿环头一周的长度。
腹围AC——胎儿肚子一周的长度。
股骨长FL——胎儿大腿骨的长度。
|
孕周 |
BPD |
FL |
HC |
AC |
|
12 |
2.0 |
0.8 |
7.1 |
5.6 |
|
13 |
2.3 |
1.1 |
8.4 |
6.9 |
|
14 |
2.7 |
1.5 |
9.8 |
8.1 |
|
15 |
3.0 |
1.8 |
11.1 |
9.3 |
|
16 |
3.3 |
2.1 |
12.4 |
10.5 |
|
17 |
3.7 |
2.4 |
13.7 |
11.7 |
|
孕周 |
BPD |
FL |
HC |
AC |
|
18 |
4.2 |
2.7 |
15.0 |
12.9 |
|
19 |
4.3 |
3.0 |
16.3 |
13.4 |
|
20 |
4.6 |
3.3 |
17.5 |
15.2 |
|
21 |
5.0 |
3.6 |
18.7 |
16.4 |
|
22 |
5.3 |
3.9 |
19.9 |
17.5 |
|
23 |
5.6 |
4.2 |
21.0 |
18.6 |
|
孕周 |
BPD |
FL |
HC |
AC |
|
24 |
5.8 |
4.4 |
22.1 |
19.7 |
|
25 |
6.1 |
4.7 |
23.2 |
20.8 |
|
26 |
6.4 |
4.9 |
24.2 |
21.9 |
|
27 |
6.7 |
5.2 |
25.2 |
22.9 |
|
28 |
7.0 |
5.4 |
26.2 |
24.0 |
|
29 |
7.2 |
5.6 |
27.1 |
25.0 |
|
孕周 |
BPD |
FL |
HC |
AC |
|
30 |
7.5 |
5.8 |
28.0 |
26.0 |
|
31 |
7.7 |
6.1 |
28.9 |
27.0 |
|
32 |
7.9 |
6.3 |
29.7 |
28.0 |
|
33 |
8.2 |
6.5 |
30.4 |
29.0 |
|
34 |
8.4 |
6.6 |
31.2 |
30.0 |
|
35 |
8.6 |
6.8 |
31.8 |
30.9 |
|
孕周 |
BPD |
FL |
HC |
AC |
|
36 |
8.8 |
7.0 |
32.5 |
31.8 |
|
37 |
9.0 |
7.2 |
33.1 |
32.7 |
|
38 |
9.1 |
7.3 |
33.6 |
33.6 |
|
39 |
9.3 |
7.5 |
34.1 |
34.5 |
|
40 |
9.5 |
7.6 |
34.5 |
35.4 |
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