International Journal of Infertility & Fetal Medicine

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VOLUME 13 , ISSUE 1 ( January-April, 2022 ) > List of Articles


Ultrasound Detection of Fetal Structural Anomalies during First Trimester Nuchal Translucency Scan in Conjunction with Traditional 18–22 Weeks Anomaly Scan

Ramanjit Kaur, Kamlesh Gupta, Gauravdeep Singh

Keywords : Fetal anomalies, First trimester, Nuchal translucency, Ultrasound

Citation Information : Kaur R, Gupta K, Singh G. Ultrasound Detection of Fetal Structural Anomalies during First Trimester Nuchal Translucency Scan in Conjunction with Traditional 18–22 Weeks Anomaly Scan. Int J Infertil Fetal Med 2022; 13 (1):18-22.

DOI: 10.5005/jp-journals-10016-1252

License: CC BY-NC 4.0

Published Online: 19-01-2022

Copyright Statement:  Copyright © 2022; The Author(s).


Aim and objective: The purpose of this study is to assess the value of performing a detailed examination of the fetus for structural anomalies in a two stage screening process at first trimester nuchal translucency (NT) scan and mid trimester anomaly scan in general population. Materials and methods: An observational study was conducted on 400 pregnant females referred to Department of Radiodiagnosis and Imaging in our hospital for NT scan at 11–13+6 weeks of gestational age. All women enrolled in the study were again subjected to traditional 18–22 weeks anatomy scan on follow up. Results: In our study, total 400 pregnant women were enrolled. Overall congenital anomaly prevalence in study population was 6.7%. Out of which 66.6% anomalies were detected in first trimester. While 35.7% of the anomalies were detected in second trimester anomaly scan. Combined use of NT and second trimester scan detected almost all of the congenital anomalies. However, many of the total anomalies among them were detected earlier in first trimester NT scan. Conclusion: Early scan can be very helpful in early diagnosis of fetal anomalies. But as many abnormalities cannot be evident in early pregnancy due to ongoing fetal development, second trimester anomaly scan should also be performed along with early screening as two stage screening process.

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