Intrinsic placental BOLD (pBOLD) was analyzed in mothers of congenital heart disease patients (CHD) and controls. The relationship between pBOLD temporal variance (primary outcome measure), CHD status and resting state fetal brain BOLD (rsBOLD) was specifically examined with secondary analyses exploring the relationship between pBOLD, placental histopathology, maternal risk factors (MRFs) and serum hormones (estriol, PAPP-A, β-hCG). We found that CHD patients demonstrated increased pBOLD temporal variance vs controls (p<0.001). When including the presence of MRFs (HTN, DM2, and Drug Use) as a covariate, a positive correlation between pBOLD and rsBOLD was identified (p=0.003).
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