How accurate are dating scans at 13 weeks dating russian woman profile browser

Posted by / 06-Aug-2019 12:27

Accuracy of CRL after 12 weeks in predicting gestational age diminishes and is replaced by measurement of the width of the fetal head (biparietal diameter or BPD).The nuchal translucency (also spelled nucal translucency) is a collection of fluid beneath the fetal skin in the region of the fetal neck and this is present and seen in all fetuses in early pregnancy.

This test results in a 9095% detection rate of pregnancies that may be at an increased risk of carrying a genetical problem such as Downs Syndrome.

The fluid collection is however increased in many fetuses with Down's syndrome and many other chromosomal abnormalities.

It is called a 'translucency' because on ultrasound this appears as a black space beneath the fetal skin.

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