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Early second‐trimester determination of fetal gender by ultrasound
Author(s) -
Meagher S.,
Davison G.
Publication year - 1996
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.1469-0705.1996.08050322.x
Subject(s) - medicine , amniocentesis , ultrasound , obstetrics , aneuploidy , fetus , obstetrics and gynaecology , second trimester , gynecology , trisomy , sonographer , prenatal diagnosis , pregnancy , chromosome , radiology , biochemistry , chemistry , gene , biology , genetics
Ultrasound identification assists in determining chorionicity in twins, in the interpretation of sex chromosome mosaicism and aneuploidy and in sex‐linked conditions presenting after 14 weeks. This study addresses the frequency and accuracy of gender identification in a series of consecutive patients presenting for amniocentesis for genetic indications. Amniocentesis was performed at 14–20 weeks in 843 fetuses over a 5‐year period. Ultrasound prediction of fetal gender was documented in 93.3% (770/843). The overall accuracy of diagnosis of fetal gender was 99.3% (765/770). Errors in diagnosis of gender were more likely to occur in the assessment of the female fetus. Such errors in diagnosis may be minimized by combining both tangential/transverse and sagittal views of the fetal perineum. Copyright © 1996 International Society of Ultrasound in Obstetrics and Gynecology