Diagnosing amnionicity at 6 weeks of pregnancy with transvaginal three- dimensional ultrasonography: Case report

Agota Babinszki, Tanmoy Mukherjee, Thomas Kerenyi, Richard L. Berkowitz, Alan B. Copperman

Research output: Contribution to journalComment/debate

19 Scopus citations

Abstract

Objective: To report a case of monochorionic, diamniotic twin pregnancy diagnosed at 6 weeks of pregnancy with three-dimensional (3D) transvaginal sonography and to discuss the use of this diagnostic method in the evaluation of multifetal pregnancy in the first trimester. Design: Case report. Setting: University-based IVF program. Patient(s): A 30-year-old ovum recipient underwent ultrasonographic evaluation of a first-trimester twin pregnancy. Intervention(s): Two-dimensional (2D) and 3D transvaginal sonography. Main Outcome Measure(s): Accurate diagnosis of chorionicity and amnionicity. Result(s): Monoamniotic pregnancy and conjoined twinning could not be ruled out by using 2D transvaginal sonography at 6 weeks, because only one yolk sac (YS) and no membranes could be visualized, and the two embryos were closely positioned within one gestational sac. Applying 3D technique, two YSs and two separate embryos could clearly be observed, establishing the correct diagnosis of a monochorionic, diamniotic pregnancy. Conclusion(s): The 3D transvaginal ultrasonography provides a quick and accurate diagnostic modality for the evaluation of a first-trimester multiple gestation.

Original languageEnglish
Pages (from-to)1161-1164
Number of pages4
JournalFertility and Sterility
Volume71
Issue number6
DOIs
StatePublished - Jun 1999

Keywords

  • Monochorionic
  • Multiple gestation
  • Ovum donation
  • Pregnancy
  • Three-dimensional ultrasonography

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