Julia Reinhardt1, Selina Kaspar1, Monika Gloor2, Dirk Fischer3, 4, Christoph Stippich1, Arne Fischmann1
1Department of Radiology and Nuclear Medicine, Division of Diagnostic and Interventional Neuroradiolo, University of Basel Hospital, Basel, BS, Switzerland; 2Department of Radiology and Nuclear Medicine, Division of Radiological Physics, University of Basel Hospital, Basel, BS, Switzerland; 3Department of Neurology, University of Basel Hospital, Basel, BS, Switzerland; 4University of Basel Childrens Hospital, Basel, BS, Switzerland
We examined the influence of a single exercise session on quantitative muscle fat fraction (FF) and diffusion (fractional anisotropy (FA)) MRI measurements. Muscular exercise will result in glyocogenolysis and lipolysis as well as increased water influx into the muscle cells. We therefore expect to find a reduced relative fat fraction and lower fractional anisotropy after an exercise session. The results show no significant difference of the mean FA values but significant changes for the FF before and after the exercise. In conclusion, a single exercise session might influence the apparent muscle fat measurements.