First-trimester ultrasound: The essentials

Roya Sohaey, Paula Woodward, William J. Zwiebel

Research output: Contribution to journalReview articlepeer-review

3 Scopus citations


A review of first-trimester ultrasound findings is presented. The normal first trimester, including practical embryology and pregnancy dating, is first discussed. Abnormal first-trimester findings, including sonographic evaluation of the failing pregnancy, ectopic pregnancy, gestational trophoblastic disease, and first-trimester cystic hygroma, are then stressed. This report reviews the spectrum of findings encountered by sonographers while evaluating early pregnancy.

Original languageEnglish (US)
Pages (from-to)2-14
Number of pages13
JournalSeminars in Ultrasound CT and MRI
Issue number1
StatePublished - Jan 1 1996
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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