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Abstract #3900

MR-Based Respiratory and Cardiac Motion Corrected 18F-FDG-PET/MR in Cardiac Sarcoidosis

Philip M Robson1, Nicolas A Karakatsanis1, Maria Giovanna Trivieri1, Ronan Abgral2, Marc R Dweck3, Jason C Kovacic4, and Zahi A Fayad1

1Translational and Molecular Imaging Institute, icahn school of medicine at mount sinai, New York, NY, United States, 2Department of Nuclear Medicine, European University of Brittany, 3British Heart Foundation/University Centre for Cardiovascular Science, University of Edinburgh, 4Cardiovascular Institute, Icahn School of Medicine at Mount Sinai

A major advantage of hybrid PET/MR systems is the radiation-free high spatial and temporal resolution of cardiac MR imaging that can be used to estimate respiratory and cardiac motion present during PET data acquisition. This information can be incorporated into algorithms to correct for the effects of motion in the PET data to reduce blurring and increase target-to-background ratios of PET hotspots. In this work, we demonstrate a method for respiratory and cardiac motion correction in patients with cardiac sarcoidosis.

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