Fetal cerebral blood flow redistribution: an analysis of Doppler reference charts and the association of different thresholds with adverse perinatal outcome

CONCLUSIONS: In the gestational age range 32 to 36 weeks adjustment of the cerebro-placental or the umbilical-cerebral ratio for gestational age is not necessary. The adoption of absolute cerebro-placental or umbilical-cerebral ratio thresholds, independent of reference charts, is feasible and is easier for clinical use than referring to percentiles or other gestational age normalized units. The high variability in percentile thresholds among the commonly used reference charts impedes reliable diagnosis and clinical management of late preterm fetal growth restriction. This article is protected by copyright. All rights reserved.PMID:33599336 | DOI:10.1002/uog.23615
Source: The Ultrasound Review of Obstetrics and Gynecology - Category: Radiology Authors: Source Type: research