ultrasound diagnosis of fatal anomalies

ATRIOVENTRICULAR SEPTAL DEFECT
Fig. 5.6 Atrioventricular septal defect. Cross-section
of fetal thorax, at 11 + 1 weeks. Apical fourchamber
view with AV septal defect in a case of
Down syndrome.
Fig. 5.7 Atrioventricular septal defect. Same case.
Demonstration of blood flow over the AV valve using
color flow mapping.
Fig. 5.8 For comparison, the flow pattern in a normal
fetus at 12 weeks.
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