Doppler indices of the middle cerebral artery in fetuses with cardiac defects theoretically associated with impaired cerebral oxygen delivery in utero: is there a brain‐sparing effect?

Objectives To assess changes in the Doppler flow profiles of the middle cerebral artery in fetuses with cardiac defects theoretically associated with impaired cerebral oxygen delivery in utero . Methods Z‐scores were calculated for pulsatility and resistance indices (PI and RI, respectively) of the middle cerebral artery (MCA) and the cerebroplacental ratio (CPR) between 19 and 41 weeks' gestation, and for head circumference at birth (HC), in...