Amniotic fluid volume assessment with the four-quadrant technique at 36-42 weeks' gestation

J. P. Phelan, C. V. Smith, P. Broussard, M. Small

Research output: Contribution to journalArticle

451 Scopus citations


An ultrasound approach was developed to identify normal amniotic fluid volume. The uterine cavity was divided into four quadrants. With the use of linear-array, real-time B-scanning, the vertical diameter of the largest pocket in each quadrant was measured. The sum of these four quadrants was used to provide a single number for the amniotic fluid volume and termed the amniotic fluid index. This approach is simple, requires little time and gives a semiquantitative estimate of amniotic fluid volume. Based on our observations, the normal amniotic fluid index in the term gestation is 12.9±4.6 cm. Evaluation of the relationship between amniotic fluid volume and fetal outcome is under investigation.

Original languageEnglish (US)
Pages (from-to)540-542
Number of pages3
JournalJournal of Reproductive Medicine for the Obstetrician and Gynecologist
Issue number7
StatePublished - Jan 1 1987


ASJC Scopus subject areas

  • Reproductive Medicine
  • Obstetrics and Gynecology

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