Evaluation of placental oxygenation index using blood oxygen level-dependent magnetic resonance imaging (BOLD-MRI) during normal late pregnancy.

Shoichi MagawaMasafumi NiiMasaki IshidaShinichi TakaseRyohei NakayamaNaosuke EnomotoHiroaki TanakaEiji KondoHajime SakumaTomoaki Ikeda

Published in: The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians (2021)

In all cases, the BOLD signal increased with maternal hyperoxia using this protocol. So, 4 min observation following maternal oxygen administration is sufficient for peak ΔR2* evaluation. These reference values set in this study may be one of the indicators of BOLD signal changes in normal pregnancies after 32 weeks of gestation.

Keyphrases

pregnancy outcomes
gestational age
magnetic resonance imaging
birth weight
resting state
preterm birth
contrast enhanced
functional connectivity
pregnant women
randomized controlled trial
computed tomography
preterm infants
diffusion weighted imaging
physical activity