Mid-trimester ultrasound prediction of gestational age: advantages and systematic errors
نویسندگان
چکیده
منابع مشابه
Prediction of small-for-gestational-age neonate by third-trimester fetal biometry and impact of ultrasound-delivery interval.
OBJECTIVES To compare third-trimester ultrasound screening methods to predict small-for-gestational age (SGA), and to evaluate the impact of the ultrasound-delivery interval on screening performance. METHODS In this prospective study, data were collected from a multicenter singleton cohort study investigating the links between various exposures during pregnancy with birth outcome and later he...
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SUMMARY Determination of gestational age have several usages in obstetrics and gynecology. The relation between fetal femur length and gestational age has determined in this research using real time sonography. 1000 iranian pregnant women between 12-40 weeks of gestation with accuratic last menstrual period and with out the history of diabetes lllellitus, hypertension, renal disease and fetal ...
متن کاملSix year survey of screening for Down's syndrome by maternal age and mid-trimester ultrasound scans.
OBJECTIVE To assess the effectiveness of antenatal screening for Down's syndrome by maternal age and routine mid-pregnancy ultrasound scanning. DESIGN Retrospective six year survey. SETTING Maternity units of a district general hospital. SUBJECTS Pregnant women booked for delivery in hospital between 1 January 1993 and 31 December 1998. MAIN OUTCOME MEASURES All cases of Down's syndrome...
متن کاملPrediction of Gestational Age According to Biparietal Diameter
SUMMARY Determination of gestational age have several usages in obstetrics and gynecology. The relation between Biparietal Diameter and gestational age has determined in this research using real time Sonography. 904 Iranian pregnant women between 12-40 weeks of gestation with accuratic last menstrual period and without the history of diabetes mellitus, hypertension, renal disease and Fetal an...
متن کاملFirst-trimester biochemical markers of aneuploidy and the prediction of small-for-gestational age fetuses.
OBJECTIVES To examine the clinical utility of the first-trimester biochemical markers of aneuploidy in their ability to predict subsequent delivery of a small-for-gestational age (SGA) infant. METHODS We examined singleton pregnancies with no chromosomal abnormality and with complete outcome data that had undergone screening for trisomy 21 by a combination of fetal nuchal translucency (NT) th...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics and Gynecology
سال: 2002
ISSN: 0960-7692
DOI: 10.1046/j.1469-0705.2002.00855.x