Flow velocity waveforms of the ductus arteriosus in appropriate and small-for-gestational-age fetuses

Giancarlo Mari, Russell L. Deter, Boonchai Uerpairojkit

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Objectives: To assess ductus arteriosus velocity waveforms in the appropriate and small-for-gestational-age (SGA) fetuses. Study Design: Ductus arteriosus flow velocity waveforms were obtained in 14 normal fetuses in a longitudinal study and in 139 normal fetuses in a cross-sectional study with pulsed and continuous Doppler ultrasonography. Ductus velocity waveforms were also determined in 25 SGA fetuses whose gestational age ranged between 20 and 34 weeks (mean ± SD: 30 ± 4.1 weeks). Results: Mathematical modeling demonstrated that the peak systolic velocity, lowest diastolic velocity, and mean velocity of the ductus arteriosus increased with advancing gestation in both the longitudinal and cross-sectional study, but considerable individual variability was seen in the longitudinal study. The pulsatility index did not change significantly. The ductal parameters were in the normal range in all the SGA fetuses. Conclusions: The blood velocity of the ductus arteriosus increases with advancing gestation. Our results suggest that Doppler ultrasonographic study of the fetal ductus arteriosus, unlike Doppler study of the umbilical artery or middle cerebral artery, is not useful as an indicator of adverse fetal outcome.

Original languageEnglish (US)
Pages (from-to)185-196
Number of pages12
JournalJournal of Clinical Ultrasound
Volume24
Issue number4
DOIs
StatePublished - Jan 1 1996
Externally publishedYes

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Ductus Arteriosus
Gestational Age
Fetus
Longitudinal Studies
Doppler Pulsed Ultrasonography
Cross-Sectional Studies
Pregnancy
Umbilical Arteries
Middle Cerebral Artery
Reference Values

All Science Journal Classification (ASJC) codes

  • Radiology Nuclear Medicine and imaging

Cite this

Flow velocity waveforms of the ductus arteriosus in appropriate and small-for-gestational-age fetuses. / Mari, Giancarlo; Deter, Russell L.; Uerpairojkit, Boonchai.

In: Journal of Clinical Ultrasound, Vol. 24, No. 4, 01.01.1996, p. 185-196.

Research output: Contribution to journalArticle

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