18F-FDG Labeling of Mesenchymal Stem Cells and Multipotent Adult Progenitor Cells for PET Imaging: Effects on Ultrastructure and Differentiation Capacity

1Division of Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium; 2Lab of Histology, Department of Functional Morphology, Biomedical Research Institute, Universiteit Hasselt, Diepenbeek, Belgium; 3Biomedical NMR Unit, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium; 4Stem Cell Institute, Department of Development and Regeneration, KU Leuven, Leuven, Belgium; 5Laboratory for Skeletal Development and Joint Disorders, KU Leuven, Leuven, Belgium; and 6Laboratory for Radiopharmacy, KU Leuven, Leuven, Belgium