Abstract #2682

Cardiac and Respiratory Motion-Resolved Free-Running Whole-Heart Coronary MRA of Patients Using 5D XD-GRASP Reconstruction.

Giulia Ginami¹, Simone Coppo¹, Li Feng², Davide Piccini^1,3, Tobias Rutz⁴, Ricardo Otazo², Daniel Sodickson², Matthias Stuber^1,5, and Jerome Yerly^1,5

¹University Hospital (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland, ²Center for Advanced Imaging Innovation and Research (CAI2R), Department of Radiology, New York University School of Medicine, New York, NY, United States, ³Advanced Clinical Imaging Technology, Siemens Healthcare, Lausanne, Switzerland, ⁴Division of Cardiology and Cardiac MR Center, University Hospital of Lausanne (CHUV), Lausanne, Switzerland, ⁵Center for Biomedical Imaging (CIBM), Lausanne, Switzerland

Free-running self-navigated techniques have been introduced in order to allow for time resolved three-dimensional whole-heart MR acquisitions. A more recently proposed free-running 5D (x-y-z-cardiac-respiration) XD-GRASP (eXtra-Dimensional Golden-angle RAdial Sparse Parallel MRI) approach enables acquisition and reconstruction of cardiac- and respiratory-motion resolved 3D volumes. In this study, we investigated the potential of 5D XD-GRASP in a clinical setting.

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