Precision of umbilical artery Doppler studies. Intraobserver, interobserver, and biologic variability of fetal Doppler velocimetry

R. L. Thomas, T. C.C. Peng, G. S. Eglinton, D. M. Strobino, T. R.B. Johnson

Research output: Contribution to journalArticle

Abstract

The use of Doppler ultrasound to study fetal blood flow has become commonplace, despite the lack of detailed evaluation of the testing tool for precision. In evaluation of 25 patients, no significant intraobserver differnces were found between readings on an individual waveform, nor were there significant differences between different observers on individual waveforms. Temporally separated waveforms within a 30-minute window gave the greatest variation. A mutiway analysis of variance noted significant differences in this category only. This study confirmed the precision of measurements by a single observer and between observers. Only biological alterations over time displayed significant variability.

Original languageEnglish (US)
Pages (from-to)201-204
Number of pages4
JournalJournal of Ultrasound in Medicine
Volume10
Issue number4
DOIs
StatePublished - 1991

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging

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