Table 2 Lateral craniocortical width (mm) according to gestational age

20–21

29

1.64 ± 0.37

0.81–2.42

0.81

1.09

1.64

2.06

2.42

22–23

39

2.10 ± 058

1.09–3.64

1.10

1.45

2.01

2.88

3.62

24–25

33

2.38 ± 0.67

1.33–4.00

1.33

1.49

2.27

3.51

3.99

26–27

28

3.12 ± 0.91

1.45–5.08

1.45

1.84

2.93

4.56

5.08

28–29

22

3.73 ± 1.01

1.94–5.82

1.94

2.54

3.51

5.42

5.82