(C) Representative quantile spline regressions of post-transplant trend amelioration of MRI quantitative parameters in Pt 05. Upper left: SIR of the quadriceps. Lower left: SIR of thigh flexor muscles. Upper right: MVI of the quadriceps. Lower right: MVI of the semitendinosus muscles. Please note the significant modification of the patient trend (red lines) compared to median measurements obtained with 85 MRI examinations of untreated patients. Empty dots correspond to pre-treatment measures. Full dots correspond to post-transplantation measurement. The grey dotted line corresponds to the time of the first intra-arterial transplantation. 