Abstract #0654

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

Philipp Eirich^1,2, Tobias Wech¹, Julius F. Heidenreich¹, Manuel Stich^1,3, 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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