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Nuchal fold thickness at 14–16 weeks' gestation as measured by transvaginal sonography
Author(s) -
BenAmi M.,
Perlitz Y.,
Mukary M.,
Peleg D.
Publication year - 2002
Publication title -
ultrasound in obstetrics and gynecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.202
H-Index - 141
eISSN - 1469-0705
pISSN - 0960-7692
DOI - 10.1046/j.1469-0705.2002.00616.x
Subject(s) - medicine , gestation , transvaginal sonography , gestational age , biparietal diameter , nuchal translucency , fetus , nuclear medicine , skull , transverse diameter , anatomy , pregnancy , first trimester , head circumference , genetics , biology
Objective To establish normal values of fetal nuchal fold thick‐ness at 14–16 weeks of gestation by transvaginal sonography. Methods Transvaginal sonography was used to measure nuchal fold thickness in 182 normal pregnancies at 14–16 weeks of gestation. Nuchal fold thickness was measured as the distance from the outer skull bone to the outer skin surface in the transverse axial image in the suboccipital‐bregmatic plane of the head. Results There was no significant association between nuchal fold thickness and gestational age ( r = 0.084; P = 0.258). The mean (standard deviation) was 2.2 (0.5) mm and the 95th centile was 3.0 mm. Conclusions The 95th centile of nuchal fold thickness measured by transvaginal sonography at 14–16 weeks is 3.0 mm. Copyright © 2002 ISUOG