Nasal bone length at 11-14 weeks of pregnancy in the Korean population

Prenatal Diagnosis
Min Hoan MoonSeong Ho Park

Abstract

The aim of this study was to provide reference values for nasal bone length (NBL) scanned at 11-14 weeks' gestation in the Korean population and compare these values with those of the Caucasian and African-American populations. From April 2004 to July 2004, fetal NBLs were measured in well-dated, non-anomalous fetuses at 11-14 weeks' gestation in the Korean population. Regression analysis was used to assess the relationship between NBL and crown-rump length (CRL), and reference values including the 5th, 50th, and 95th percentile were calculated for each gestational age. The reference values in our study were compared with those of the Caucasian and African-American populations. A total of 982 cases were prospectively included in the study. NBL increased linearly with advance in CRL and was described by the equation; NBL (mm) = 0.433 + 0.022 x CRL (mm), R(2) = 0.37. The median values (5%, 95%) were 1.5 mm (1.2 mm, 1.9 mm), 1.7 mm (1.4 mm, 2.1 mm), 1.9 mm (1.6 mm, 2.3 mm), and 2.1 mm (1.7 mm, 2.6 mm) for 11, 12, 13, and 14 weeks' gestation, respectively. The median values for each gestational age in the Korean population were significantly lower than those in the Caucasian and African-American populations (P < 0.0001). There is a...Continue Reading

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Citations

Mar 18, 2008·Archives of Gynecology and Obstetrics·Paulo Sérgio CossiAntonio Fernandes Moron
Jul 29, 2015·Journal of Obstetrics and Gynaecology : the Journal of the Institute of Obstetrics and Gynaecology·S PranpanusN Pruksanusak
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