ArticleJournal of ultrasound2021
Fetal sex prediction measuring yolk sac size and yolk sac-fetal pole distance in the first trimester via ultrasound screening.
Article in Journal of ultrasound, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed, 2 citations in OpenAlex.
- Clinical spectrum of female genital malformations in prenatal diagnosis.Archives of gynecology and obstetrics · 2022Review
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Authors and funding
4 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe aim of the study was to determine the accuracy of fetal sex definition by measuring the yolk sac size and the yolk sac-fetal pole distance in the first trimester via ultrasound (US) screening.
methodsWe enrolled 92 gestational women in this prospective study. In the first trimester of US examination, the gestational sac, the gestational sac-fetal pole distance, and the yolk sac size were measured. When the fetal pole was in the longitudinal position, the distance between the fetal pole and the yolk sac was measured in millimeters (mm). The crown-rump length (CRL) was measured in the same position. US examination at 22 weeks was performed to determine whether the fetal gender was male or female. The genders of the fetuses were recorded. The sexes were also confirmed and recorded after birth.
resultsFifty-five (59.8%) of the newborns were found to be male, while 37 (40.2%) of them were found to be female. We compared the yolk sac size and the yolk sac-fetal pole distance in both the female and male groups. We found that the genders showed a significant difference in terms of yolk sac-fetal pole distance, whereas the yolk sac size showed no significant difference between the genders. The optimal cutoff value of the yolk sac-fetal pole distance was 1.80 mm, with 70% sensitivity and 67% specificity for female gender prediction. The distance also showed an independent association with gender prediction in the first trimester.
conclusionYolk sac-fetal pole distance may have the potential to predict gender in the first trimester of pregnancy.
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