Doppler Ultrasound of the Fetal Descending Aorta: An Objective Tool to Assess Placental Blood Flow Resistance in Pregnancies with Discordant Umbilical Arteries.
Lindsay S CahillGrace V MercerDakshita JagotaAnjana Ravi ChandranNatasha MilliganShiri ShinarClare L WhiteheadSebastian R HobsonLena SerghidesW Tony ParksChristopher K MacgowanJohn C KingdomJohn G SledAhmet A BaschatPublished in: Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine (2021)
The relationship between blood flow in the descending aorta and UAs is consistent with the law for combining resistances in parallel. Measurements of the descending aorta PI, particularly in a scenario with discordant UAs, may inform the stability of the feto-placental circulation where discordant UA PIs are found.