Document Detail

An assessment of vascularity and flow intensity of the placenta in normal pregnancy and pre-eclampsia using three-dimensional ultrasound.
MedLine Citation:
PMID:  20230318     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To test the hypothesis that parameters of vascularity and flow intensity of the placenta as determined by three-dimensional (3D) ultrasound, (1) are different in normal pregnancy compared to pre-eclampsia (2) decrease from the basal plate towards the chorionic plate. METHODS: Twenty women with normal pregnancy and 17 women with pre-eclampisa were studied. 3D power Doppler ultrasound was used to acquire individual placental volumes. Rotational measurements of placental volumes were acquired using virtual organ computer aided analysis (VOCAL). The power Doppler signals were then semi-quantified within 'histogram facility', which generates three vascularity and flow intensity parameters: flow index (FI), vascular index (VI) and vascularisation flow index (VFI). RESULTS: FI, VI and VFI were lower in pre-eclampsia compared to normal pregnancy in all regions of the placenta. This difference was statistically significant in most regions of the placenta after accounting for gestational age, body mass index and placental site. We were not able to demonstrate a decreasing gradient of these parameters from basal plate to chorionic plate. CONCLUSION: 3D ultrasound to assess placental vascularity and flow intensity appears to be an interesting research tool. However, other indices derived from Power Doppler may be more relevant to obstetric practice.
Janitha Costa; Helen Rice; Chris Cardwell; Alyson Hunter; Stephen Ong
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians     Volume:  23     ISSN:  1476-4954     ISO Abbreviation:  J. Matern. Fetal. Neonatal. Med.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-16     Completed Date:  2010-11-04     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101136916     Medline TA:  J Matern Fetal Neonatal Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  894-9     Citation Subset:  IM    
Department of Obstetrics and Gynaecology, Royal Jubilee Maternity Hospital, Belfast, UK.
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MeSH Terms
Imaging, Three-Dimensional
Placenta / blood supply*,  ultrasonography
Placental Circulation*
Pre-Eclampsia / physiopathology*,  ultrasonography

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