Imaging clues in the prenatal diagnosis of syndromes and aneuploidy

摘要: Advances in fetal sonography and MRI have increased both the range diagnostic accuracy of detectable anomalies, with many anomalies earlier pregnancy. The presence structural greatly raises risk that fetus has a syndrome or abnormal karyotype. In addition, new techniques maternal serum screening ability to identify pregnant patients at for syndromes. This paper reviews first- second-trimester imaging covers most common karyotypic anomalies.