OP21.03: Efficacy of complete morphological screening for chromosomal anomalies at the time of nuchal translucency measurement
نویسندگان
چکیده
منابع مشابه
Nuchal translucency measurement in first trimester Down syndrome screening.
(1) Approximately three in every four fetuses with Down syndrome have increased nuchal translucency (NT), which is a larger than normal build-up of fluid at the back of the neck. (2) The ultrasound measurement of NT between 11 and 14 weeks' gestation, in combination with the mother's age and the levels of placental biochemical markers in her blood, can be used to detect approximately 84% of fet...
متن کاملFetal echocardiography at the time of the nuchal translucency scan.
OBJECTIVE The fetal heart is not studied routinely in the first trimester because of technical and time limitations. Our aim was to assess the feasibility of performing a fetal cardiac study in pregnancies referred for nuchal translucency (NT) screening, using high-frequency linear transabdominal transducers with a specific ultrasound preset. METHODS A single trained operator assessed the fet...
متن کاملAssessment of the Number of Umbilical Cord Vessels at the Time of Nuchal Translucency Screening
Nuchal translucency (NT) thickness is utilized as a screening test in prenatal assessment of risk of aneuploidy in the first trimester. This test is performed between 11.0-13.9 weeks gestational age, corresponding to a crown-rump length (CRL) of 45-84mm. Alone, or in combination with maternal serum analytes of pregnancy-associated plasma protein A (PAPP-A) and beta human chorionic gonadotropin ...
متن کاملPredictive value of fetal nuchal translucency in the screening of chromosomal aberrations
In search for specific early ultrasound signs that could indicate an increased risk of hereditary or acquired disorders of the fetus, scientific research confirms the value of exceptional ultrasound findings nuchal translucency (NT). The aim of the study was to determine the predictive value of the diameter of fetal NT in the detection chromosomopathy. The investigation included 317 pregnant wo...
متن کاملA mixture model of nuchal translucency thickness in screening for chromosomal defects
Objective Fetal nuchal translucency (NT) thickness increases with crown–rump length (CRL). In screening for chromosomal defects patient-specific risks are derived by multiplying the a priori maternal age-related risk by a likelihood ratio, determined from the deviation of the measured NT from the expected median. To quantify this deviation the measured NT is either subtracted (delta NT) or divi...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics & Gynecology
سال: 2011
ISSN: 0960-7692
DOI: 10.1002/uog.9455