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Abstract #0654

Spiral real-time cardiac MR imaging using a GSTF-based pre-emphasis

Philipp Eirich1,2, Tobias Wech1, Julius F. Heidenreich1, Manuel Stich1,3, Nils Petri4, Peter Nordbeck4, Thorsten A. Bley1, and Herbert Köstler1
1Department of Diagnostic and Interventional Radiology, University Hospital Würzburg, Würzburg, Germany, 2Comprehensive Heart Failure Center Würzburg, Würzburg, Germany, 3Siemens Healthcare, Erlangen, Germany, 4Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany

An automatic pre-emphasis based on the Gradient System Transfer Function (GSTF) was applied to real-time cardiac MR imaging at 3T to compensate for deviations of spiral k-space trajectories. This yielded cine series with coverage of the whole heart in free-breathing, less than 40 s total scan time and a temporal resolution of 50 ms. The developed framework was compared to a gated Cartesian acquisition in multiple breath-holds, in one healthy volunteer and one patient suffering from cardiac arrhythmia.

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