UMMS Affiliation

Department of Radiology

Publication Date


Document Type



Female Urogenital Diseases and Pregnancy Complications | Obstetrics and Gynecology | Radiology | Women's Health


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.


Abnormal gestation, abortion, ectopic pregnancy, transvaginal ultrasound, viability

Rights and Permissions

Copyright © 2020 Korean Society of Ultrasound in Medicine (KSUM). This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

DOI of Published Version



Murugan VA, Murphy BO, Dupuis C, Goldstein A, Kim YH. Role of ultrasound in the evaluation of first-trimester pregnancies in the acute setting. Ultrasonography. 2020 Apr;39(2):178-189. doi: 10.14366/usg.19043. Epub 2019 Oct 16. PMID: 32036643. Link to article on publisher's site

Journal/Book/Conference Title

Ultrasonography (Seoul, Korea)

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PubMed ID


Creative Commons License

Creative Commons Attribution-Noncommercial 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License