Document Detail

Reference ranges for umbilical and middle cerebral artery pulsatility index and cerebroplacental ratio in prolonged pregnancies.
MedLine Citation:
PMID:  15517536     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To construct normal ranges for umbilical artery pulsatility index (UA PI), middle cerebral artery pulsatility index (MCA PI) and cerebroplacental ratio (CPR) in prolonged pregnancies according to strict methodological criteria using polynomial regression analysis. METHODS: This was a retrospective, cross-sectional observational study involving 140 women, 10 women for each gestational day between 287 and 300 days of gestation. Fetal Doppler parameters were assessed to construct normal reference ranges for UA PI and MCA PI. CPR was calculated as a ratio of MCA PI/UA PI. RESULTS: Mathematical modeling of the data demonstrated that the optimal fit was a linear polynomial one. Mean, 5th and 95th centiles were calculated for UA, MCA and CPR and centile curves from the regression analysis were constructed. CONCLUSIONS: Reference ranges for UA PI, MCA PI and CPR in prolonged pregnancies have been constructed. MCA PI shows a wider range than previously reported in the literature.
M Palacio; F Figueras; L Zamora; J M Jiménez; B Puerto; O Coll; V Cararach; J A Vanrell
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology     Volume:  24     ISSN:  0960-7692     ISO Abbreviation:  Ultrasound Obstet Gynecol     Publication Date:  2004 Nov 
Date Detail:
Created Date:  2004-11-08     Completed Date:  2005-04-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9108340     Medline TA:  Ultrasound Obstet Gynecol     Country:  England    
Other Details:
Languages:  eng     Pagination:  647-53     Citation Subset:  IM    
Institut Clínic de Ginecologia, Obstetrícia i Neonatologia, Hospital Clínic de Barcelona, Barcelona, Spain.
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MeSH Terms
Cross-Sectional Studies
Fetus / blood supply*
Gestational Age
Laser-Doppler Flowmetry
Middle Cerebral Artery / embryology,  physiology*
Pregnancy, Prolonged / physiology*
Pulsatile Flow
Reference Values
Retrospective Studies
Umbilical Arteries / embryology,  physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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