Article
Combining nuchal translucency and serum markers in prenatal screening for Down syndrome in twin pregnancies
13 Jun 2003
Abstract excerpt
A method is described to combine the ultrasound marker nuchal translucency (NT) with serum markers so that they can be used together in prenatal screening for Down syndrome in twin pregnancies. For monochorionic twin pregnancies (taken as monozygous), the two fetus-specific NT measurements are averaged before risk is calculated and before the contribution of the serum markers is incorporated. For dichorionic twin...
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