Role of first-trimester sonography in the diagnosis of aneuploidy and structural fetal anomalies.

OBJECTIVE We sought to determine the sensitivity of the first-trimester scan in the early diagnosis of aneuploidy and structural fetal anomalies in an unselected low-risk population. METHODS This was a retrospective chart review of all patients having first-trimester scans between 2002 and 2009. At our center, a survey of fetal anatomy is performed at the… (More)