First-trimester ultrasound assessment of the nasal bone to screen for aneuploidy.
Increasingly, women are choosing first-trimester risk assessment for Down syndrome and other aneuploid conditions. Recent studies have suggested that adding ultrasound assessment of the nasal bone to nuchal translucency thickness and maternal serum analytes in the first trimester will improve performance. This report assesses the current literature and discusses practical issues that must be addressed before widespread implementation of nasal bone screening in the United States.
Department of Obstetrics and Gynecology, Columbia University Medical Center, 622 West 168th Street, PH 16-66, New York, NY 10032, USA. tr2171@columbia.edu
Todd
T
Rosen
Mary E
ME
D'Alton
Lawrence D
LD
Platt
Ronald
R
Wapner
D000782:Aneuploidy; D015415:Biomarkers; D005260:Female; D006801:Humans; D009295:Nasal Bone / Q000002:abnormalities / Q000000981:diagnostic imaging*; D048208:Nuchal Translucency Measurement; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D016216:Ultrasonography, Prenatal / Q000379:methods*
D015415:Biomarkers