Major obstetric complications such as pre-eclampsia and intrauterine growth restriction can result from malformations in the circulation of the fetus and placenta. Robust, high resolution in-utero MR angiography has the potential to be a valuable tool in identification and monitoring of these disorders but is hampered by the presence of complex motion, ineffective breath holds and lack of safe contrast agents. Here we present a motion compensated method for visualising the vascular networks in the fetus and placenta using respiration resolved 2D inflow angiography with efficient and dense spatiotemporal sampling and retrospective correction.
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