Quantified discordant placental echogenicity in twin-twin transfusion syndrome and anemia polycythemia sequence in correlation with peak systolic velocity middle cerebral artery D…

Purpose: Discordant echogenicity and thickness between the donor and recipient placenta has been proposed as an additional sonographic sign of twin-twin transfusion syndrome (TTTS) and twin anemia polycythemia sequence (TAPS). Prenatal criteria of TAPS are increased (> 1.5 MoM) peak systolic velocity in the middle cerebral artery (MCA-PSV) in the donor twin and a decreased (< 1.0 MoM) MCA-PSV in the recipient. The aim of this study was to quantify the placental echogenicity discrepancy in TTTS and TAPS cases correlated with MCA-PSV Doppler findings in both twins. Material and methods: We retrospectively evaluate…