ArticleUltrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology2025
Longitudinal assessment of intravillous arterioles in normal pregnancy using superb microvascular imaging.
Article in Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- MV-Flow imaging for evaluating the placental function of gestational diabetes mellitus.Frontiers in endocrinology · 2025Article
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Authors and funding
6 authors.
Funding
Abstract
objectiveTo use superb microvascular imaging (SMI) to longitudinally evaluate blood flow in intravillous arterioles (IVA) in pregnancy, and to develop reference ranges for IVA pulsatility index (PI) and peak systolic velocity (PSV) from 12 to 38 weeks' gestation.
methodsThe data for this study were obtained from the National Institutes of Health-funded Human Placenta Project. Eligible for inclusion were women aged 18-35 years, with a body mass index of < 30 kg/m
resultsA total of 90 women fulfilled the study criteria. IVA-PI decreased throughout pregnancy from a mean ± SD of 1.04 ± 0.23 in the first trimester (at 12-13 weeks) to 0.75 ± 0.10 in the late third trimester (at 36-37 weeks). Mean IVA-PSV increased from 5.97 ± 1.47 cm/s at 12-13 weeks to 12.65 ± 4.19 cm/s at 28-29 weeks, and then plateaued throughout the third trimester, to 13.09 ± 4.64 cm/s at 36-37 weeks. UA-PI decreased progressively throughout pregnancy, from 1.49 ± 0.22 at 16-17 weeks to 0.89 ± 0.18 at 36-37 weeks. Reference ranges for IVA-PI and IVA-PSV from 12 to 38 weeks' gestation were developed.
conclusionPlacental IVA blood flow can be visualized and quantified from early gestation in normal pregnancies using SMI. © 2025 The Author(s). Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.
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