الفهرس 
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Abstract
Title: Fetal Ultrasound Scanning at 11-13 weeks Gestation for Detection of Fetal Abnormalities at Low Risk Pregnancy Purpose: The aim of this study was to determine the sensitivity of the fetal ultrasound scanning at 11-13 weeks gestation in the early diagnosis of structural fetal anomalies in an unselected low-risk population. Materials and methods totally 195 pregnant women at first trimester with low risk pregnancy (no maternal or fetal factors that place the pregnancy at increased risk for complication). Cases of this study were recruited according to the inclusion and exclusion criteria. Ultrasound screening was performed at 11-13 Weeks in all 195 pregnant women. For all cases continuing pregnancy a follow up scan was done at 18-22 weeks for confirmation. Results: The results indicated that the prevalence of congenital anomalies in the studied cases during ultrasound in the 11-13th week of pregnancy was 2.1% and during the second trimester it was 3.8%, and the agreement rate between the first and second examination was 83.9%. Conclusions We conclude from the results of the research that the diagnosis of ultrasound at the gestational age of 11-13 weeks is possible, and we recommend introducing the radiological examination from 11 to 13 weeks as the first part of examining abnormalities during pregnancy, and we recommend increasing the size of the study sample to obtain more accurate results. Keywords: low risk pregnancy – fetal scanin