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Impact of motion on simultaneously acquired PET/MRI of myocardial infarcted heart.
Heeseung Lim1, Benjamin Wilk 1,2, Jane Sykes 1, John Butler 1, Gerald Moran3, Jonathan Thiessen1,2, Gerald Wisenberg1,4, and Frank S Prato1,2
1Lawson Health Research Institute, London, ON, Canada, 2Medical Biophysics, Western University, London, ON, Canada, 3Siemens Healthcare Limited, Oakville, ON, Canada, 4MyHealth Centre, Arva, ON, Canada
This study investigates the impact of motion in simultaneously acquired myocardial PET/MRI data and finds a significant discrepancy in functional data between registered to post-mortem images to non-registered images. 
Comparison of net influx rate (Ki) between original dynamic PET data and transformed dynamic PET data. Heart polar-map comparison is shown in a) & b). Correlation scatter plot shows significant correlation with correlation coefficient = 0.959 in c).
Comparison of net influx rate (Ki) between original and transformed images at 4 different segments (left anterior descending artery, left circumflex artery, right coronary artery, apex) of heart and 3 different time points (before the lipid infusion, during the lipid infusion and after the lipid infusion).