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Figure 2 Magnetic Resonance Imaging Labeling Using Combined Modality Imaging Agent
Fluorescent green component of iron-fluorophore-labeled porcine mesenchymal stem cells delivered by intramyocardial injection with nuclei stained blue (left). Same panel imaged using Nomarski optics (middle). Hemotoxylin/eosin stain of same panel with iron-labeled cells appearing brown (right). Magnetic resonance imaging long-axis slice of a porcine left ventricle after anteroapical intramyocardial injection of iron-fluorophore-labeled mesenchymal stem cells (bottom). The black area on the endomyocardial border (arrows) is the signal void created by the iron-labeled cells.
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