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Abstract #0942

Deep learning-based non-rigid motion-corrected reconstruction for whole-heart multi-dimensional joint T1/T2 imaging

Lina Felsner1, Carlos Velasco1, Haikun Qi2, Karl P. Kunze1,3, Radhouene Neji1,3, René M. Botnar1, and Claudia Prieto1
1School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, 2School of Biomedical Engineering, ShanghaiTech University, Shanghai, China, 3MR Research Collaborations, Siemens Healthcare Limited, Camberley, United Kingdom

Synopsis

Keywords: Machine Learning/Artificial Intelligence, Motion CorrectionMyocardial T1 and T2 mapping play an important role in the assessment of cardiovascular disease. 3D whole-heart joint T1/T2 water/fat mapping approaches have been recently proposed, however they require long reconstruction times. Recently a Machine learning based reconstruction was proposed for joint motion correction and motion corrected image reconstruction of undersampled free-breathing single contrast 3D coronary MR angiography. Here, we extend this approach for non-rigid motion-corrected reconstructions for multi-contrast data for joint T1/T2 mapping. The proposed approach achieves good agreement with reference techniques and comparable image quality to state-of-the-art methods albeit in 1200 times shorter reconstruction times.

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Keywords