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Egyptian Journal of Radiology and Nuclear Medicine

Table 1 Sonographic parameters

From: Evaluation of sensitivity and accuracy of maternal serum alpha fetoprotein to the diagnosis of open spina bifida in comparison with sonographic findings of open spina bifida and Chiari II malformation in pregnant women

Variables

Range (min–max)

Mean

SD

AFP

1.98–5.81

3.0225

.77866

CM

0.5–6.7

4.295

1.3629

BS

2–5.1

2.304

.4247

BSOB

3.5–1.7

3.183

.2744

BS/BSOB

0.6–1.8

.7266

.21557

Maternal age (y)

18–39

29.87

5.278

Fetal age (w)

12–20

17.11

2.492

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