Optimal Labeling Dose, Labeling Time, and Magnetic Resonance Imaging Detection Limits of Ultrasmall Superparamagnetic Iron-Oxide Nanoparticle Labeled Mesenchymal Stromal Cells
Absolute phantom MRI intensities after 21 hour USPIO incubation. MRI intensities are absolute mean values. USPIO: ultrasmall superparamagnetic iron-oxide. USPIO dose: full = 10 μg per 105 cells; half = 5 μg per 105 cells.