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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1989-11-22
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pubmed:abstractText |
In 209 pregnancies without complications we recorded blood velocity waveforms of the umbilical artery and the foetal aorta between 29 and 42 weeks of gestation by means of a Duplex-pulsed Doppler system (umbilical artery: n = 276; foetal aorta: n = 244). We calculated the pulsatility index (PI) and the resistance index (RI). Both indices were normally distributed. The regression lines and reference ranges for the 95% confidence intervals are shown. The PI as well as the RI of waveforms of the umbilical artery demonstrated a significant fall with increasing gestation. The PI of the foetal aorta demonstrated a gentle, non-significant fall; RI showed no changes throughout the third trimester. Comparisons with the reference ranges published by other authors are discussed.
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pubmed:language |
ger
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0172-4614
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
10
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
226-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2678469-Blood Flow Velocity,
pubmed-meshheading:2678469-Female,
pubmed-meshheading:2678469-Gestational Age,
pubmed-meshheading:2678469-Humans,
pubmed-meshheading:2678469-Infant, Newborn,
pubmed-meshheading:2678469-Maternal-Fetal Exchange,
pubmed-meshheading:2678469-Pregnancy,
pubmed-meshheading:2678469-Reference Values,
pubmed-meshheading:2678469-Signal Processing, Computer-Assisted,
pubmed-meshheading:2678469-Ultrasonography,
pubmed-meshheading:2678469-Vascular Resistance
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pubmed:year |
1989
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pubmed:articleTitle |
[Reference values for the pulsatility index and the resistance index of blood flow curves of the umbilical artery and fetal aorta in the 3d trimester].
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pubmed:affiliation |
Abteilung für Geburtshilfe und Gynäkologie, LKH-Klagenfurt.
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pubmed:publicationType |
Journal Article,
English Abstract,
Research Support, Non-U.S. Gov't
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