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Abstract #4963

In utero monitoring of early embryonic mouse brain development and injury progression with localized diffusion MRI

Dan Wu1, Jun Lei2, Yan Zhu2, Michael McLane2, and Irina Burd2

1Radiology, Johns Hopkins University school of Medicine, Baltimore, MD, United States, 2Gynecology and Obstetrics, Johns Hopkins University school of Medicine, Baltimore, MD, United States

In utero diffusion MRI (dMRI) of the embryonic mouse brain is challenging due to maternal and fetal motions and limited resolution. We have previously developed a localized imaging technique and achieved fast dMRI of the live embryos. Here we explored the capacity of this technique to image embryonic mouse brains from mid-to-late gestation stages during development. Furthermore, we monitored the progression of embryonic brain injury in a mouse model of intrauterine inflammation. Our results suggested in utero dMRI is an indicator of fetal outcome after inflammatory injury, and the embryonic brain injury correlates with placental injury in this animal model.

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