P10.25: Fetal nasal bone: normal values from 14+ 0 to 23+ 6 weeks of gestation in Caucasian fetuses
نویسندگان
چکیده
منابع مشابه
Normal fetal nasal bone length at 14 to 28 weeks of gestation.
The fetal nasal bone length (FNBL) is a recent sonographic marker included in second trimester genetic sonography which varies with race and ethnicity. The importance of measuring FNBL is in the prenatal diagnosis of Down's syndrome (DS), the most common chromosomal abnormality. Nasal bone hypoplasia or absence is one of the frequent features of DS. Different studies conducted in different part...
متن کاملReliability of fetal nasal bone length measurement at 11–14 weeks of gestation
BACKGROUND Nasal bone assessment has been incorporated into Down syndrome screening in first trimester. Several studies have established the normal reference values for fetal nasal bone length in the first trimester, which were found to be varied by population. However, the study on reliability of nasal bone length measurement was limited with contradictory results. This study aimed to investig...
متن کاملAssessment of the fetal nasal bone at 11-14 weeks of gestation by three-dimensional ultrasound.
OBJECTIVE To evaluate the benefit of three-dimensional (3D) ultrasound in the examination of the fetal nasal bone at 11-14 weeks of gestation. METHOD We examined the fetal nasal bone in 120 stored volumes acquired transabdominally with a 3D scanner from singleton pregnancies at 11-14 weeks of gestation. The volume acquisition had been performed following conventional ultrasound examination th...
متن کاملFetal head-to-trunk volume ratio in chromosomally abnormal fetuses at 11 + 0 to 13 + 6 weeks of gestation.
OBJECTIVE To determine the pattern of early growth disturbance in chromosomally abnormal fetuses by comparing the volume of the fetal head to that of the trunk. METHODS The fetal trunk and head volume was measured using three-dimensional (3D) ultrasound in 145 chromosomally abnormal fetuses at a median gestational age of 12 (range, 11 + 0 to 13 + 6) weeks. The head volume was measured separat...
متن کاملMetopic suture in fetuses with holoprosencephaly at 11 + 0 to 13 + 6 weeks of gestation.
OBJECTIVE To investigate the development of the metopic suture in fetuses with holoprosencephaly at 11 + 0 to 13 + 6 weeks of gestation. METHODS Three-dimensional (3D) ultrasound was used to measure the height and gap between the frontal bones in 200 normal fetuses and in nine fetuses with holoprosencephaly at 11 + 0 to 13 + 6 (median, 12) weeks of gestation. RESULTS In the 200 normal fetus...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics and Gynecology
سال: 2004
ISSN: 0960-7692,1469-0705
DOI: 10.1002/uog.1521