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Journal of Diagnostic Medical Sonography
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The Use of Nuchal Lucency as a Screening Tool in First Tritester Sonography

Sherri L. Stevens, BS, RT(R)

Department of Diagnostic Medical Sonograph., University of Nebraska Medical Center, Omaha, Nebraska

Improved ultrasound resolution and continuing attempts to detect congenital abnormalities and chromosomal aberrations in early pregnancy have led to the use of nuchal lucency as a marker for such conditions in the first trimester. Current research has shown the importance of increased nuchal lucency (greater than 3 mm) as an identifying risk marker for aneuploidy and, in the presence of normal karyotype, additional anatomic anomalies.

Key Words: karyotype • nuchal lucency • trisomal • ultrasound

Journal of Diagnostic Medical Sonography, Vol. 14, No. 6, 251-254 (1998)
DOI: 10.1177/875647939801400603
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