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Abstract #3148

Systolic Myocardial T1- and ECV-Mapping using Saturation-Recovery at 3 Tesla

Nadja M Meßner1,2, Sebastian Weingärtner1,3,4, Johannes Budjan5, Dirk Loßnitzer6, Theano Papavassiliu2,6, Lothar R Schad1, and Frank G Zöllner1

1Computer Assisted Clinical Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany, 2DZHK (German Centre for Cardiovascular Research) partner site Mannheim, Mannheim, Germany, 3Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, MN, United States, 4Center for Magnetic Resonance Research, University of Minnesota, Minneapolis, MN, United States, 5Institute of Clinical Radiology and Nuclear Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany, 61st Department of Medicine Cardiology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany

Partial volume artifacts in myocardial T1-mapping are a major source of quantification inaccuracy. In this study, saturation-recovery T1-mapping at 3T was adapted to allow for systolic imaging in order to take advantage of the increased myocardial wall thickness. Estimated T1- and ECV- values for SR T1-mapping during systole were 1554±3ms/0.29±0.03 compared to 1581±35ms/0.31±0.04 at diastole. In conclusion, our results show that SR T1-mapping in systole might be an alternative to derive T1- and ECV-values with reduced effects of partial volume.

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