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Abstract #0460

XD-ORCCA for BOOST: accelerated motion-compensated simultaneous bright- and black-blood 3D whole-heart coronary MRI

Teresa M Correia1, Giulia Ginami1, Aurelien Bustin1, Radhouene Neji2, Rene M Botnar1, and Claudia Prieto1

1School of Biomedical Engineering and Imaging Sciences, King's College London, London, United Kingdom, 2MR Research Collaborations, Siemens Healthcare Limited, Frimley, United Kingdom

Recently, a novel free-breathing 3D whole-heart sequence, called T2-prepared BOOST, was proposed for non-contrast enhanced bright-blood and black-blood coronary MR imaging, for simultaneous coronary lumen and coronary thrombus/ intraplaque hemorrhage visualization. However, high-resolution fully-sampled BOOST acquisitions require long scan times of ~20min. Here, we propose to use a modified version of XD-ORCCA, a highly efficient respiratory-resolved motion-corrected framework, to accelerate BOOST acquisitions. XD-ORCCA exploits the sparsity in a motion-corrected domain to acquire high-quality respiratory-resolved bright- and black-blood BOOST images in ~6min. Hence, high-resolution free-breathing BOOST imaging is achieved within clinically feasible acquisition times.

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