Distinguishing Right From Left: A Standardized Technique for Fetal Echocardiography

Timothy M. Cordes, Patrick W. O'Leary, James B. Seward, Donald J. Hagler

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Improved echocardiographic equipment and increasing experience have led to accurate and reliable prenatal diagnosis of congenital defects and arrhythmias. However, without a standard convention for acquisition and presentation of fetal images, distinguishing the right side of the fetus from the left side can be difficult and confusing. This article proposes a standard method of image acquisition and presentation that allows confident determination of the fetal right/left axis by easily identified anatomic landmarks. This technique provides a reliable determination of the fetal right/left axis regardless of fetal position (i.e., face up, face down, facing left, or facing right), in both real time and retrospective review. Only after the fetal right/left axis has been determined can accurate diagnoses of fetal atrial and visceral situs, base-apex axis, and cardiac segmental anatomy be made.

Original languageEnglish (US)
Pages (from-to)47-53
Number of pages7
JournalJournal of the American Society of Echocardiography
Issue number1
StatePublished - 1994

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine


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