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18 sty 2024 · Our nuchal translucency calculator finds the percentile of the nuchal fold thickness and compares it with the nuchal translucency measurement chart. This calculation allows us to estimate the risk of the genetic disorders of a given pregnancy.
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Enter the CRL and press calculate to obtain the estimated gestational age and expected nuchal translucency thickness. The calculator will also give the percentile for a measured NT if entered for CRL 40 to 85 mm.
A mixture model of nuchal translucency thickness in screening for chromosomal defects. Ultrasound Obstet Gynecol 2008;31:376-83 . For more information click here. If you want to visit your own FMF page please click here.
The following tools have been placed here for fast and convenient use by U/S practitioners or pregnant women who want to recheck their pregnancy calculations and estimates. home > Practical Calculators > Nuchal Translucency
Nuchal translucency (NT) is the sonographic appearance of a collection of fluid under the skin behind the fetal neck in the first-trimester of pregnancy. The term translucency is used, irrespective of whether it is septated or not and whether it is confined to the neck or envelopes the whole fetus.
23 lip 2021 · An image review tool has been developed to help the screening support sonographer working in antenatal screening to review ultrasound images of nuchal translucency and crown rump length.
All fetuses develop a measurable nuchal translucency at some point in the first trimester. Thickness of the translucency varies with gestational age: Peak thickness at 12-13 weeks (in 75% of fetuses). At 12-13 weeks the 50th percentile thickness = 1.7mm. At 12-13 weeks the 95th percentile thickness = 2.8mm.
