Search for: [Abstract = "pictures characteristic for particular CHDs were elaborated. ResultsTR was confirmed in 6.38% cases of euploidy. TR in aneuploidy was found 44%. The highest prevalence of TR was observed in fetuses with trisomy 18 \(63.6%\), next with trisomy 21 \(44.4%\), trisomy 13 \(42.9%\) and Turner syndrome \(22.2%\). All aneuploidies presenting TR showed additional markers of aneuploidy. Absence of DV \(noDV\) was depicted in 0.47% cases of euploidy. Reverse a\-wave in DV flow \(revDV\) was observed in 2.46% of euploid fetuses. Fetuses with chromosomal aberrations showed noDV in 5.8% and revDV in 35.7%. noDV in aneuploidy was the most common in Turner syndrome \(37.5%\), next in trisomy 13 \(7.14%\), and trisomy 21 \(1.19%\). noDV profile was not observed in cases of trisomy 18. revDV in aneuploidy was the most common in trisomy 18 \(47.8%\), trisomy 13 \(42.8%\), trisomy 21 \(33.3%\) and Turner syndrome \(25%\). Mean NT values differed depending on the karyotype result between cases presenting various patterns of DV flow.Sensitivity of late first trimester four\-chamber view \(4CV\) in color mapping for detecting CHD was 47,71% with specificity 100%. On the other hand sensitivity of three\-vessel and trachea view \(3VTV\) reached 71,43% with specificity 100%. The most accurate results was obtained by applying combination of these two views –sensitivity of 88,57% and specificity of 100%. To compare NT above 3.5mm showe"]
