Doppler ultrasonography of the fetoplacental circulation : normal reference values

dc.contributor.authorPattinson, R. C.en_ZA
dc.contributor.authorTheron, G. B.en_ZA
dc.contributor.authorThompson, M. L.en_ZA
dc.contributor.authorLai Tung, M.en_ZA
dc.date.accessioned2011-03-18T14:57:22Z
dc.date.available2011-03-18T14:57:22Z
dc.date.issued1989
dc.descriptionCITATION: Pattinson, R. C. et al. 1989. Doppler ultrasonography of the fetoplacental circulation : normal reference values. South African Medical Journal, 76:623-625.
dc.descriptionThe original publication is available at http://www.samj.org.za
dc.description.abstractNormal reference values for the resistance index, A/B ratio and pulsatility index of the umbilical artery obtained by Doppler ultrasonography are presented. The resistance index and A/B ratio values are very similar to those previously published, indicating no need for formulate normal values for different populations. The pulsatility index differed from other published values, probably reflecting different calculation methods built into the spectrum analysers rather than differences in waveforms. The resistance index had the lowest coefficient of variation and showed least inter-observer variation. For routine use the resistance index is preferable to other indices.
dc.description.versionPublisher’s version
dc.format.extent3 pages
dc.identifier.issn2078-5135 (online)
dc.identifier.issn0256-9574 (print)
dc.identifier.urihttp://hdl.handle.net/10019.1/7368
dc.language.isoen
dc.publisherHealth & Medical Publishing Group
dc.rights.holderSouth African Medical Journal
dc.subjectDoppler ultrasonographyen_ZA
dc.titleDoppler ultrasonography of the fetoplacental circulation : normal reference valuesen_ZA
dc.typeArticle
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