Three-dimensional ultrasonography measurement of fetal nasal bone length during the midtrimester in Taiwanese women
作者： Pei-Yin Yang , Joung-Liang Wu , Guang-Perng Yeh , Charles Tsung-Che Hsieh
DOI: 10.1016/J.TJOG.2012.07.006
关键词:
摘要: Abstract Objective To evaluate the normal range of fetal nasal bone length (NBL) in Taiwanese women using three-dimensional (3D) ultrasound, and compare NBL fetuses with Down syndrome to determine its significance screening for trisomy 21. Materials Methods A total 102 consecutive another 7 21, determined by karyotyping at 15–22 weeks' gestation, were evaluated 3D ultrasound before amniocentesis Changhua Christian Hospital between November 2003 April 2004. Results The second trimester population was investigated, a linear relationship gestational age noted. increased advancing (NBL cm=0.0264×gestational weeks –0.042 ( R 2 =0.2416). median biparietal diameter/nasal ratio had stable value which tended change minimally 15 22 gestation. Chromosomally statistically longer bones than p =0.014). Conclusion We present reference measurement NBL. short is associated high risk
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