Timing of ultrasound in pregnancy--how often? At what intervals?

Seminars in Perinatology
Lyndon M Hill

Abstract

The second trimester fetal anatomic survey has continued to evolve over the past 27 years. This review will summarize the changes in the anatomic survey that have occurred and provide recommendations that serve to improve compliance with the components of the survey. In order to provide clarity and direction, the goals and limitations of the second trimester fetal anatomic survey should be defined. The visualization rate of specific fetal anatomic structures can be increased by specifying acceptable, alternative views. A single follow-up examination within 2-4 weeks of a fetal anatomic survey or before 22 weeks' gestation should be offered when specific components of the fetal anatomic survey cannot be visualized. The fetal anomalies that the anatomic survey seeks to identify should be defined along with an acceptable detection rate.

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Citations

Jan 1, 2014·Journal of Clinical Medicine·Paula Zozzaro-SmithLoralei L Thornburg
Oct 30, 2016·Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine·J Christopher Glantz
May 10, 2018·Obstetrics and Gynecology·Marva Moxey-Mims, Tonse N K Raju
Oct 28, 2019·Prenatal Diagnosis·Mary B JanickiReinaldo Figueroa
Feb 9, 2018·JBI Database of Systematic Reviews and Implementation Reports·Christina PreenNicholas Flack
May 8, 2021·Journal of the American College of Radiology : JACR·UNKNOWN Expert Panel on GYN and OB ImagingPhyllis Glanc

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