Journal article
Genetic sonography after first‐trimester Down syndrome screening
Abstract
OBJECTIVE: Approximately 90% of Down syndrome cases are detected during first-trimester screening. We aimed to determine the potential effectiveness of second-trimester genetic sonography as a sequential screen for Down syndrome.
METHODS: In this simulation study, published statistical parameters for first-trimester free beta-human chorionic gonadotropin, pregnancy-associated plasma protein-A and nuchal translucency thickness, and …
Authors
Krantz DA; Hallahan TW; Macri VJ; Macri JN
Journal
Ultrasound in Obstetrics and Gynecology, Vol. 29, No. 6, pp. 666–670
Publisher
Wiley
Publication Date
June 2007
DOI
10.1002/uog.4029
ISSN
0960-7692