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Abstract #3263

Fetal cardiac volume reconstruction from motion-corrected multi-slice dynamic MRI

Joshua FP van Amerom1, David A Lloyd1, Maria Kuklisova Murgasova1, Anthony N Price1, Shaihan J Malik1, Paul Aljabar2, Joanna M Allsop2, Ana Gomes2, Mary A Rutherford1,2, Kuberan Pushparajah1,3, Reza Razavi1,3, and Joseph V Hajnal1

1Division of Imaging Sciences and Biomedical Engineering, King's College London, London, United Kingdom, 2Centre for the Developing Brain, King's College London, London, United Kingdom, 3Department of Congenital Heart Disease, King's College LondonEvelina London Children's Hospital, London, United Kingdom

Motion is a significant challenge in fetal cardiac MRI. Multi-slice 2D dynamic MR data was used to reconstruct high-temporal resolution real-time images to be combined in time as 2D cine images and then in space as volumes with full coverage of the heart. Retrospective, image-based post-processing (motion correction, outlier rejection) was used to improve image quality in the presence of intra- and inter-slice motion. Reconstructed multi-slice cine images depict the complex anatomy of the fetal heart across the cardiac cycle and preliminary volume reconstructions allow multiple views to be visualised.

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