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Updated: Dec 29, 2025

High Frequency Ultrasound for the Analysis of Fetal and Placental Development In Vivo
Published on: November 8, 2018
Role of ultrasound in the evaluation of first-trimester pregnancies in the acute setting
Venkatesh A Murugan1, Bryan O'Sullivan Murphy1, Carolyn Dupuis1
1Department of Radiology, University of Massachusetts Medical School, Worcester, MA, USA.
Abstract:
In patients presenting for an evaluation of pregnancy in the first trimester, transvaginal ultrasound is the modality of choice for establishing the presence of an intrauterine pregnancy; evaluating pregnancy viability, gestational age, and multiplicity; detecting pregnancy-related complications; and diagnosing ectopic pregnancy. In this pictorial review article, the sonographic appearance of a normal intrauterine gestation and the most common complications of pregnancy in the first trimester in the acute setting are discussed.
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