Accreditation: This course is accredited by ASRT - an approved continuing education provider of ARRT.
Release Date: 7/23/2013
Expiration Date: 7/31/2019

Obstetrical Sonography

Tricia Turner, BS, RDMS, RVT

*Assistant Program Director, South Hills School of Business and Technology, State College, PA

Address Correspondence to: Tricia Turner, BS, RDMS, RVT, South Hills School of Business and Technology, 480 Waupelani Drive, State College, PA 16801. Email:

Disclosure Statement: Ms Turner reports having no financial or advisory relationships with corporate organizations related to this activity.


Since the 1950s, the development of sonography as an imaging modality has assisted in improving the quality of various obstetrical examinations and allowed detailed viewing and evaluation of the fetus throughout pregnancy. Today, the use of sonography is an important component in modern prenatal care. During each trimester, sonography may be used to provide detailed images of fetal anatomy, growth, and structural information, as well as diagnose various complications and possible birth defects. As with any imaging modality, questions of its safety have been posed; however, if used with care, the benefits of sonography examination outweigh the potential risks. This article will focus on the development of sonography specifically for obstetrical imaging as well as discuss the various examinations, tests, and protocols for the use of sonography on the pregnant patient.

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