Assessment of the Number of Umbilical Cord Vessels at the Time of Nuchal Translucency Screening

Assessment of the Number of Umbilical Cord Vessels at the Time of Nuchal Translucency Screening

The primary objective of this study is to determine the detection rate of two- or three-vessel umbilical cord at the time of nuchal translucency screening between 11 and 13 6/7 weeks gestation.

Hypothesis: Detection rate of the number of vessels during first trimester will be as accurate as the detection of vessels during the second trimester.

Inclusion Criteria:

• Singleton or multiple-gestation pregnancies in patients presenting for NT screening between 11 and 13 6/7 weeks gestation and CRL between 45-84mm as determined at the time of the ultrasound
• Age 18 and older

Exclusion Criteria:

• Patients who are incapable of informed consent or minors