Assessment of early chorionic circulation by three-dimensional power Doppler

Journal of Perinatal Medicine
Tomislav HafnerIvanka Bekavac

Abstract

Three-dimensional power Doppler sonography is a unique instrument that enables assessment of vascular signals within the whole investigated area. Hemodynamical changes included in the process of early placentation are one of the most exciting topics in investigation of early human development. This investigation was designed as an observational cross-sectional study. A group of 25 patients in gestational age five to eleven weeks were recruited for the study. After acquirement of the volume containing three-dimensional power Doppler data of the pregnant uterus, the signals belonging to the chorion were isolated. Vascular 3D measurements were undertaken through 3D color/power histogram and expressed by Vascularization Index (VI) and Vascularization Flow Index (VFI). Volume of the chorion increased exponentially throughout the observation period. The VI and VFI positively correlated with the crown-rump length and chorion volume, and showed gradual increment through the investigation period. This investigation produced results confirming gradual augmentation of the loci and intensity of the intervillous flow in pregnancies between five and eleven gestational weeks.

References

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Citations

Aug 23, 2006·Archives of Gynecology and Obstetrics·Edward Araujo JúniorAntonio Fernandes Moron
Apr 25, 2007·Archives of Gynecology and Obstetrics·Sebastiao Marques Zanforlin FilhoAntonio Fernandes Moron
Jun 11, 2004·Journal of Perinatal Medicine·Luis T MercéSantiago Bau
Feb 23, 2007·Journal of Perinatal Medicine·Asim KurjakHrvoje Vrcic
Mar 10, 2016·Pregnancy Hypertension·R Moreira Neto, J G L Ramos
Feb 7, 2008·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·C GuiotT Todros
Mar 14, 2003·Current Opinion in Obstetrics & Gynecology·Chris R Harman, Ahmet A Baschat

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