Figure 10

Magnetic resonance imaging of SPIO-labeled human MSCs. The lowest detectable cell number was 1 × 10³ labeled MSCs after immediate exposition to magnetic fields (JPR-MSC + m(0 h)) (C). The detection limit by MRI of labeled MSCs exposed after 24 h to magnetic fields (JPR-MSC + m(24 h)) was 2 × 10³ MSCs (B) and the detection limit by MRI of labeled MSCs without exposition to magnetic fields (JPR-MSC - m) was 5 × 10³ MSCs (A).