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Updated: Feb 7, 2026

Three-dimensional Rendering and Analysis of Immunolabeled, Clarified Human Placental Villous Vascular Networks
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Three-dimensional Rendering and Analysis of Immunolabeled, Clarified Human Placental Villous Vascular Networks

Published on: March 29, 2018

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Effect of chorionic villus sampling on placental volume and vascularization in the first trimester of pregnancy

Valentina Bruno1, Federica Martelli1, Maria Vittoria Capogna1

  • 1Academic Department of Biomedicine and Prevention, and Clinical Department of Surgery, University of Rome "Tor Vergata", Section of Gynecology and Obstetrics, Tor Vergata University Hospital, Rome, Italy.

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
|July 14, 2018
PubMed

Objective: To evaluate the effects of chorionic villus sampling (CVS) on placental volume (PV), perfusion, and vasculature in the first trimester of pregnancy.Method: Uterine artery pulsatility index (PI), PV, vascularization index (VI), flow index (FI), and Vascularization Flow Index (VFI) were serially measured in 38 pregnant women who underwent CVS. Thirty-eight women who did not undergo invasive prenatal diagnosis were recruited as controls.Results: CVS was associated with a mild reduction of PI, a reduction of placental VI, FI, and VFI and with an increase in PV detected one week after the procedure. The outcome of pregnancy was similar between women of the two groups.Conclusion: Our findings showed that CVS is associated with mild placental vascular and morphological changes. However, these changes do not seem to be associated with adverse outcome.

Keywords:
3D ultrasonographyVOCALchorionic villus samplinguterine artery pulsatility index

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