In conclusion, first trimester (11-14 weeks)
ultrasound scanning along with NT measurement and
a detailed anatomical survey can play an important
role in early detection of fetal structural anomalies. A
thorough knowledge of the sonographic features of
embryologic development is necessary to avoid potential
diagnostic pitfalls. The anatomical ultrasound
scan at 18-20 weeks of gestation should also be performed,
since a number of anomalies may not be evident
at first trimester scanning. Finally, the present
study is just a preliminary report with a limited sample
size and the cost-effectiveness of such a routine
scanning in all pregnant women needs to be evaluated
with a larger study