Placental MRI: Effect of maternal position and uterine contractions on placental BOLD MRI measurements

Esra Abaci Turk,S. Mazdak Abulnaga,Jie Luo,Jeffrey N. Stout,Henry A. Feldman,Ata Turk,Borjan Gagoski,Lawrence L. Wald,Elfar Adalsteinsson,Drucilla J. Roberts,Carolina Bibbo,Julian N. Robinson,Polina Golland,P. Ellen Grant,William H. Barth

Placenta（2020）

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摘要

•Placental R2* increase with maternal hyperoxia is influenced by maternal position.•Maternal position affects the spatiotemporal distribution of placental BOLD signals.•Maternal position does not alter global TTP but results in regional changes in TTP.•Braxton-Hicks contractions can dominate R2* change even during maternal hyperoxia.•Braxton-Hicks contractions significantly affect regional changes in R2*.

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关键词

Placental MRI,BOLD MRI,Maternal position,Maternal hyperoxia,Braxton-Hicks contraction

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