Fronto-Occipital Diameter

Romero R, Pilu G, Jeanty P et.al.

Normal sonographic anatomy of the fetal central nervous system.

In: Prenatal diagnosis of congenital anomalies 1988;

table1-5:pg12 Norwalk: Appleton and Lange

GA (wks)	5th Percentile	50th Percentile	95th Percentile
11	11	18	25
12	16	23	30
13	20	27	34
14	24	31	38
15	29	36	43
16	33	40	47
17	37	44	51
18	41	48	55
19	46	53	60
20	50	57	64
21	54	61	68
22	58	65	72
23	62	69	76
24	65	72	79
25	69	76	83
26	73	80	87
27	76	83	90
28	80	87	94
29	83	90	97
30	86	93	100
31	89	96	103
32	92	99	106
33	95	102	108
34	97	104	111
35	99	106	113
36	102	109	116
37	104	111	118
38	105	112	119
39	107	114	121
40	108	115	122
41	109	116	123
42	110	117	124