Abstract #0988

Are myocardial MOLLI T1 differences between athletic and non-athletic subjects real or dependent on center differences or MOLLI scheme?

Tom Dresselaers^1,2, Ruben De Bosscher³, Sofie Tilborghs^4,5, Alexandru Cernicanu⁶, Christophe Dausin⁷, Oliver Ghekiere⁸, Rik Willems³, Guido Claessen³, and Jan Bogaert^1,2

¹Radiology, UZ Leuven, Leuven, Belgium, ²Imaging and Pathology, KU Leuven, Leuven, Belgium, ³Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium, ⁴Department of Electrical Engineering (ESAT), KU Leuven, Leuven, Belgium, ⁵Medical Imaging Research Center, Medical Physics and Quality Assessment, KU Leuven, Leuven, Belgium, ⁶Philips Benelux, Eindhoven, Netherlands, ⁷Exercise Physiology Research Group, KU Leuven, Leuven, Belgium, ⁸Jessa Hospital, Hasselt, Belgium

We analysed differences in myocardial T1 between non-athletic subjects and athletes (which started endurance training early or late in life) to determine inter-center consistency. In addition, we implemented and extended MOLLI scheme (5s5s1s) to improve precision at very low heart rate typical in athlete's and compared with results from a standard 5s3s MOLLI. Absolute levels were dependent on MOLLI scheme and site, but group differences were very similar as evident from full myocardium T1 histograms.

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