Document Detail


Pixelwise Quantification of Placental Perfusion Visualized by 3D Power Doppler Sonography.
MedLine Citation:
PMID:  22576697     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Purpose: We present a new method for noninvasive automatic measurement of perfusion intensity (PixelFlux method) in standardized 3 D power Doppler sonography to quantify differences of perfusion intensities among different placental layers. Materials and Methods: Power Doppler sonographic videos of anterior and central placentas were recorded at various gestational ages (13 to 38 weeks) under defined conditions in 22 women with uncomplicated pregnancies which ended in the delivery of an appropriately grown fetus. Tissue perfusion intensity in four placental layers was calculated as the product of the Doppler amplitude and the perfused area encoded by power Doppler signals related to the area of the respective layer. Measurements are given as the percentage of maximal possible perfusion. Results: Significant differences in placental perfusion intensities in the uterine wall (6.6 %), the maternal flow within the intervillous space (2.4 %), the fetal flow within placental villi (1.6 %) and the chorionic plate (9.3 %) were demonstrated with a continuous increase in the uterine wall and the placental villi. Conclusion: Placental perfusion intensity was quantified noninvasively from 3 D power Doppler signal data in an easily accomplishable manner with a new software-based measurement procedure. There are significant differences in perfusion intensities among placental layers. Placenta perfusion measurement with the PixelFlux method is feasible and can discern significant perfusion differences among different placenta layers.
Authors:
T M Scholbach; J Konje; B Huppertz
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-5-10
Journal Detail:
Title:  Ultraschall in der Medizin (Stuttgart, Germany : 1980)     Volume:  -     ISSN:  1438-8782     ISO Abbreviation:  -     Publication Date:  2012 May 
Date Detail:
Created Date:  2012-5-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8303585     Medline TA:  Ultraschall Med     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© Georg Thieme Verlag KG Stuttgart · New York.
Affiliation:
Klinik für Kinder- und Jugendmedizin, Klinikum Chemnitz.
Vernacular Title:
Pixelweise Plazentaperfusionsmessung aus dreidimensionalen Power-Doppler-Daten.
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