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- W2006702009 abstract "To determine the effectiveness of a fetal anatomic survey performed in conjunction with nuchal translucency (NT) screening ultrasound (US) in an unselected pregnant population. This is a prospective observational study of women presenting for NT screening for chromosomal defects. An anatomic survey was performed following a standardized protocol. All studies were performed transabdominally. Transvaginal US was done when indicated. The maximum scan time was restricted to 30 minutes. 325 singleton fetuses (11 + 2 to 13 + 6 weeks) were examined. Mean duration of scan was 26 minutes. In 89 (24.6%) cases, transvaginal US was performed. NT was successfully measured in all fetuses. Mean NT was 1.7 mm (range 0.8 to 3.1 mm). Fetal anatomic structures were seen as follows: cranium 324 (99.7%), intracranial anatomy 319 (98%), nasal bone 308 (95%), 4 chamber view 274 (84%), cord insertion 322 (99%), stomach 319 (98%), bladder 291 (89.5%), spine 147 (45%), all four limbs 323 (99%). Complete anatomy was seen in 109 (33%). Anomalies detected included 1 open neural tube defect (ONTD) and 1 umbilical cord cyst. The 18–20 week scan was performed at our institution in 274 (84%) fetuses and 2 ONTD, 1 hypoplastic left heart syndrome and 1 case of polydactyly were detected. Factors accounting for our low visualization of complete anatomy include: 41 (12.6%) fetuses less than 12 weeks' gestation, 124 (38%) maternal body mass index greater than 25, limited scan time, multiple operators and selective use of transvaginal US. A complete fetal anatomic survey was successful in 33% of fetuses in a time-limited screening program between 11–14 weeks' gestation. Sonographer education and protocol modification would likely improve the success rate. Since some anomalies are not evident in the early scan, it is important to perform the 18–20 week scan." @default.
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- W2006702009 date "2004-08-01" @default.
- W2006702009 modified "2023-10-18" @default.
- W2006702009 title "P14.05: Ultrasound detection of fetal anomalies in the first trimester in conjunction with nuchal translucency screening: a feasibility study" @default.
- W2006702009 doi "https://doi.org/10.1002/uog.1605" @default.
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