The Relationship of the Fetal Crown-Rump Length to the Yolk Sac ...
C
CRIMSON PUBLISHERS Wings to the Research
Perceptions in Reproductive Medicine
ISSN: 2640-9666
Short Communication
The Relationship of the Fetal Crown-Rump Length to the Yolk Sac Diameter in Normal Pregnancy
Daniel Faustin*, Cheyenne Cortez, Derek Liang, Katie Soe, Hadiatou Barr and Jennifer Chan
Department of Obstetrics Gynecology and Women's Health, Wyckoff Heights Medical Center, USA
*Corresponding author: Daniel Faustin, MD, Department of Obstetrics Gynecology and Women's Health, Wyckoff Heights Medical Center, Brooklyn, New York, USA. Submission: July 09, 2018; Published: August 15, 2018
Abstract
Objective: Establish normal values for the ratio of the fetal Crown-Rump Length (CRL) to the yolk sac (YS) diameter during the first trimester of pregnancy and determine whether it correlates with gestational age.
Methods: A retrospective analysis of 1453 pregnancies was undertaken from May 1 2012 to June 30 2016 to determine the CRL/YS ratio on uncomplicated pregnancies referred for routine sonographic evaluation between 5 and 11 weeks of gestation at our Maternal Fetal Medicine Unit. Complicated pregnancies, abnormal intrapartum courses and poor fetal birth outcomes were excluded. The mean CRL/YS ratio was established for each gestational age interval and a Pearson coefficient of correlation (r) was calculated with p ................
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