Document Detail

Reference values for Doppler parameters of the fetal anterior cerebral artery throughout gestation.
MedLine Citation:
PMID:  19887818     Owner:  NLM     Status:  MEDLINE    
AIM: To construct normal reference values for Doppler parameters in 2 anatomical segments of the fetal anterior cerebral artery (ACA) throughout pregnancy. METHODS: The ACA was evaluated in 373 normally growing fetuses from 20 to 40 weeks of gestation. The first segment of the ACA (ACA-S1) was recorded just after its origin from the internal carotid artery in the same plane as the middle cerebral artery (MCA). The second segment (ACA-S2) was recorded distal to the outlet of the anterior communicating artery. RESULTS: The ACA pulsatility index (PI) behaved similarly in both segments, with a constant increase until 28 weeks followed by a decrease until the end of pregnancy [ACA-S1 PI = 3.49 - 0.37 x gestational age (GA) - (0.0063 x GA(2)), SD = 0.6 - 0.061 x GA - (0.001 x GA(2)); ACA-S2 PI = 1.54 - 0.22 x GA - (0.0037 x GA(2)), SD = 0.206 + (0.0037 x GA)]. Peak systolic velocities in both segments showed a constant increase from 20 to 40 weeks of gestation. No significant differences were found between the 2 segments with regard to any Doppler parameter. However, the angle of insonation and the time spent on examination were significantly lower and reproducibility was better for ACA-S1. CONCLUSION: Despite showing similar Doppler values, ACA-S1 has a higher reliability than ACA-S2 and can be recorded in the same anatomical projection as the MCA.
J A Benavides-Serralde; E Hern?ndez-Andrade; H Figueroa-Diesel; D Oros; L A Feria; M Scheier; F Figueras; E Gratac?s
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-11-01
Journal Detail:
Title:  Gynecologic and obstetric investigation     Volume:  69     ISSN:  1423-002X     ISO Abbreviation:  Gynecol. Obstet. Invest.     Publication Date:  2010  
Date Detail:
Created Date:  2010-01-21     Completed Date:  2010-04-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7900587     Medline TA:  Gynecol Obstet Invest     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  33-9     Citation Subset:  IM    
Copyright Information:
Copyright 2009 S. Karger AG, Basel.
Fetal and Perinatal Medicine Research Group, Department of Maternal-Fetal Medicine, Hospital Cl?nic, Institut d'Investigacions Biomediques August Pi i Sunyer, University of Barcelona, Barcelona, Spain.
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MeSH Terms
Anterior Cerebral Artery / ultrasonography*
Brain / blood supply*
Cross-Sectional Studies
Fetus / anatomy & histology*,  blood supply
Gestational Age
Middle Cerebral Artery / ultrasonography*
Reference Values
Reproducibility of Results
Ultrasonography, Doppler, Color / methods*,  standards
Young Adult

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

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