Sonographic measurement of the umbilical cord and fetal anthropometric parameters

Luigi Raio, Fabio Ghezzi, Edoardo Di Naro, Ricardo Gomez, Massimo Franchi, Moshe Mazor, Hermann Brühwiler

    Research output: Contribution to journalArticlepeer-review

    82 Scopus citations


    Objective: To determine reference ranges for the diameter and the cross-sectional area of the umbilical cord during pregnancy and to determine if umbilical cord morphometry is related to fetal size. Methods: A prospective cross-sectional study was designed to assess the sonographic cross-sectional diameter and area of the umbilical cord. The sonographic umbilical cord measurements were obtained in a plane adjacent to the insertion of the cord into the fetal abdomen. Nomograms for the umbilical cord diameter and area were computed. Fetal biometry included: biparietal diameter, abdominal circumference, and femur length. Polynomial regression analysis was conducted. Results: Five hundred and fifty seven patients were included into the study. The regression equation for the umbilical cord diameter (y) according to gestational age (x) was y=-10.0563+1.4265x+0.0194x 2 and for the umbilical cord area (y') was y'=91.6-3.3x+0.03x 2 -0.00007x 3 . A significant relationship was found between umbilical cord measurements and fetal anthropometric parameters. Conclusion: Reference ranges for umbilical cord diameter and area have been generated. The sonographic diameter and cross-sectional area of the umbilical cord increase as a function of gestational age and both diameter and area correlate with fetal size. Copyright (C) 1999 Elsevier Science Ireland Ltd.

    Original languageEnglish
    Pages (from-to)131-135
    Number of pages5
    JournalEuropean Journal of Obstetrics and Gynecology and Reproductive Biology
    Issue number2
    StatePublished - 1 Apr 1999


    • Fetal biometry
    • Nomograms
    • Umbilical cord

    ASJC Scopus subject areas

    • Reproductive Medicine
    • Obstetrics and Gynecology


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