Abstract #2196

PolyGate: Benefits of a spatially resolved navigator for self-gating cardiac imaging in multiple rodents.

Willy Gsell^1,2, Cesar Molinos³, Carlos Correcher³, Michael Heidenreich⁴, Joren Vandengaer¹, Wouter Oosterlinck⁵, Uwe Himmelreich¹, Christophe M Deroose⁶, and Arno Nauerth⁷

¹Biomedical MRI group, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium, ²MoSAIC facility, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium, ³Nuclear Molecular Imaging, Bruker BioSpin Preclinical Imaging Division, Bruker BioSpin, Valencia, Spain, ⁴Nuclear Molecular Imaging, Bruker BioSpin Preclinical Imaging Division, Bruker BioSpin, Ettlingen, Germany, ⁵Cardiac Surgery, department of cardiovascular Sciences, KU Leuven, Leuven, Belgium, ⁶Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium, ⁷Nuclear Molecular Imaging, Bruker BioSpin Preclinical Imaging Division, Bruker Biospin, Ettlingen, Germany

We implemented a spatially resolved navigator based on the self-gated IntraGate-FLASH method. The new navigator offers many advantages such as the possibility to scan several animals at the same time, improve the quality of the motion correction and to distinguish between the different types of motion from a single acquisition. Moreover, we have been able to synchronize MRI with PET for simultaneous acquisition and to retrospectively reconstruct gated PET-images.

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