A study of nuchal translucency and other first-trimester sonographic markers of chromosomal abnormalities

Abstract

Background: Genetic sonography following first-trimester combined screening 
appears to increase substantially detection rates for Down syndrome, but it relies on 
the unproved assumption of independence between these tests. Aim and Objective: 
To detect nuchal translucency and other first-trimester sonographic markers of 
chromosomal abnormalities. Method: This study was performed on pregnant women 
with a gestational age of 11 weeks and 13 weeks (6 days) at the department