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Abstract #0879

Fast 3D whole Heart Imaging using low-discrepancy Sampling Strategies

Tobias Speidel1, Dagmar Bertsche1, Patrick Metze1, Kilian Stumpf1, Wolfgang Rottbauer1, and Volker Rasche1
1Internal Medicine II, Ulm University Hospital, Ulm, Germany

Three-dimensional MRI is a valuable tool for the diagnosis of heart diseases, which furthermore offers advantages such as intrinsically higher signal-to-noise ratios, less scan planning efforts and the possibility to reconstruct arbitrary anatomical planes from one dataset. Despite these advantages, inherently long acquisition durations often limit clinical applications. This abstract highlights the possibility of acquiring qualitative 3D images at an isotropic resolution of 1.09 mm within 250 heartbeats (ECG-gating), using specifically generated k-space interleaves with low-coherent and low-discrepancy sampling properties, based on a generalised form of the previously introduced Seiffert-Spirals. Cardiac image segmentations are furthermore presented to emphasise image qualities.

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