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Table 1 Sonographic measurements of the sinocortical and anterior craniocortical width (mm)

From: Evaluation of fetal subarachnoid space using transabdominal ultrasonography and normal values during pregnancy

GA (week)

N

Mean ± SD

Min –max

3rd  %ile

10th %ile

50th %ile

90th %ile

97th %ile

SCW

135

1.55 ± 0.41

0.85–3.87

0.99

1.14

1.49

2.10

2.49

Anterior CCW

120

1.63 ± 0.39

0.85–2.82

0.87

1.15

1.62

2.19

2.38

  1. SD standard deviation, Min minimum, Max maximum, SCW sinocortical width, CCW craniocortical width
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