Pitfalls in Sonographic Imaging of the Incompetent Uterine Cervix

Edmond Confino*, Kara L. Mayden, Robert V. Giglia, Michael Vermesh, Norbert Gleicher

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


Artifacts interfering with sonographic imaging of the uterine cervix in pregnancy are described. Increasing the amount of fluid in the urinary bladder closes the cervix and alters the configuration of the lower uterine segment, while increased intra‐uterine pressure results in reciprocal changes. Angulation of the transducer and manual pressure thereon distort sonographic findings. It is concluded that, contrary to recent reports in the literature, sonography cannot reliably demonstrate changes in cervical compliance during pregnancy. Vaginal examination remains the ultimate diagnostic modality for the diagnosis of the imcompetent cervix, while sonography may be used as an adjunct only. 1986 Acta Obstet Gynecol Scand

Original languageEnglish (US)
Pages (from-to)593-597
Number of pages5
JournalActa Obstetricia et Gynecologica Scandinavica
Issue number6
StatePublished - Jan 1986


  • Sonography
  • incompetent uterine cervix

ASJC Scopus subject areas

  • Obstetrics and Gynecology

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